    {-# LANGUAGE ImplicitParams, RankNTypes, TypeApplications #-}

    -- | Copyright  : Will Thompson and Iñaki García Etxebarria
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- Allows the user to reveal or conceal a child widget.
    --
    -- \<picture>
    --   \<source srcset=\"expander-dark.png\" media=\"(prefers-color-scheme: dark)\">
    --   \<img alt=\"An example GtkExpander\" src=\"expander.png\">
    -- \<\/picture>
    --
    -- This is similar to the triangles used in a @GtkTreeView@.
    --
    -- Normally you use an expander as you would use a frame; you create
    -- the child widget and use 'GI.Gtk.Objects.Expander.expanderSetChild' to add it
    -- to the expander. When the expander is toggled, it will take care of
    -- showing and hiding the child automatically.
    --
    -- = Special Usage
    --
    -- There are situations in which you may prefer to show and hide the
    -- expanded widget yourself, such as when you want to actually create
    -- the widget at expansion time. In this case, create a @GtkExpander@
    -- but do not add a child to it. The expander widget has an
    -- [Expander:expanded]("GI.Gtk.Objects.Expander#g:attr:expanded") property which can be used to
    -- monitor its expansion state. You should watch this property with
    -- a signal connection as follows:
    --
    --
    -- === /c code/
    -- >static void
    -- >expander_callback (GObject    *object,
    -- >                   GParamSpec *param_spec,
    -- >                   gpointer    user_data)
    -- >{
    -- >  GtkExpander *expander;
    -- >
    -- >  expander = GTK_EXPANDER (object);
    -- >
    -- >  if (gtk_expander_get_expanded (expander))
    -- >    {
    -- >      // Show or create widgets
    -- >    }
    -- >  else
    -- >    {
    -- >      // Hide or destroy widgets
    -- >    }
    -- >}
    -- >
    -- >static void
    -- >create_expander (void)
    -- >{
    -- >  GtkWidget *expander = gtk_expander_new_with_mnemonic ("_More Options");
    -- >  g_signal_connect (expander, "notify::expanded",
    -- >                    G_CALLBACK (expander_callback), NULL);
    -- >
    -- >  // ...
    -- >}
    --
    --
    -- = GtkExpander as GtkBuildable
    --
    -- An example of a UI definition fragment with GtkExpander:
    --
    --
    -- === /xml code/
    -- ><object class="GtkExpander">
    -- >  <property name="label-widget">
    -- >    <object class="GtkLabel" id="expander-label"/>
    -- >  </property>
    -- >  <property name="child">
    -- >    <object class="GtkEntry" id="expander-content"/>
    -- >  </property>
    -- ></object>
    --
    --
    -- = CSS nodes
    --
    --
    --
    -- >expander-widget
    -- >╰── box
    -- >    ├── title
    -- >    │   ├── expander
    -- >    │   ╰── <label widget>
    -- >    ╰── <child>
    --
    --
    -- @GtkExpander@ has a main node @expander-widget@, and subnode @box@ containing
    -- the title and child widget. The box subnode @title@ contains node @expander@,
    -- i.e. the expand\/collapse arrow; then the label widget if any. The arrow of an
    -- expander that is showing its child gets the @:checked@ pseudoclass set on it.
    --
    -- = Accessibility
    --
    -- @GtkExpander@ uses the 'GI.Gtk.Enums.AccessibleRoleButton' role.

    #if !defined(__HADDOCK_VERSION__)
    #define ENABLE_OVERLOADING
    #endif

    module GI.Gtk.Objects.Expander
        (

    -- * Exported types
        Expander(..)                            ,
        IsExpander                              ,
        toExpander                              ,

     -- * Methods
    -- |
    --
    --  === __Click to display all available methods, including inherited ones__
    -- ==== Methods
    -- [actionSetEnabled]("GI.Gtk.Objects.Widget#g:method:actionSetEnabled"), [activate]("GI.Gtk.Objects.Widget#g:method:activate"), [activateAction]("GI.Gtk.Objects.Widget#g:method:activateAction"), [activateDefault]("GI.Gtk.Objects.Widget#g:method:activateDefault"), [addController]("GI.Gtk.Objects.Widget#g:method:addController"), [addCssClass]("GI.Gtk.Objects.Widget#g:method:addCssClass"), [addMnemonicLabel]("GI.Gtk.Objects.Widget#g:method:addMnemonicLabel"), [addTickCallback]("GI.Gtk.Objects.Widget#g:method:addTickCallback"), [allocate]("GI.Gtk.Objects.Widget#g:method:allocate"), [announce]("GI.Gtk.Interfaces.Accessible#g:method:announce"), [bindProperty]("GI.GObject.Objects.Object#g:method:bindProperty"), [bindPropertyFull]("GI.GObject.Objects.Object#g:method:bindPropertyFull"), [childFocus]("GI.Gtk.Objects.Widget#g:method:childFocus"), [computeBounds]("GI.Gtk.Objects.Widget#g:method:computeBounds"), [computeExpand]("GI.Gtk.Objects.Widget#g:method:computeExpand"), [computePoint]("GI.Gtk.Objects.Widget#g:method:computePoint"), [computeTransform]("GI.Gtk.Objects.Widget#g:method:computeTransform"), [contains]("GI.Gtk.Objects.Widget#g:method:contains"), [createPangoContext]("GI.Gtk.Objects.Widget#g:method:createPangoContext"), [createPangoLayout]("GI.Gtk.Objects.Widget#g:method:createPangoLayout"), [disposeTemplate]("GI.Gtk.Objects.Widget#g:method:disposeTemplate"), [dragCheckThreshold]("GI.Gtk.Objects.Widget#g:method:dragCheckThreshold"), [errorBell]("GI.Gtk.Objects.Widget#g:method:errorBell"), [forceFloating]("GI.GObject.Objects.Object#g:method:forceFloating"), [freezeNotify]("GI.GObject.Objects.Object#g:method:freezeNotify"), [getv]("GI.GObject.Objects.Object#g:method:getv"), [grabFocus]("GI.Gtk.Objects.Widget#g:method:grabFocus"), [hasCssClass]("GI.Gtk.Objects.Widget#g:method:hasCssClass"), [hasDefault]("GI.Gtk.Objects.Widget#g:method:hasDefault"), [hasFocus]("GI.Gtk.Objects.Widget#g:method:hasFocus"), [hasVisibleFocus]("GI.Gtk.Objects.Widget#g:method:hasVisibleFocus"), [hide]("GI.Gtk.Objects.Widget#g:method:hide"), [inDestruction]("GI.Gtk.Objects.Widget#g:method:inDestruction"), [initTemplate]("GI.Gtk.Objects.Widget#g:method:initTemplate"), [insertActionGroup]("GI.Gtk.Objects.Widget#g:method:insertActionGroup"), [insertAfter]("GI.Gtk.Objects.Widget#g:method:insertAfter"), [insertBefore]("GI.Gtk.Objects.Widget#g:method:insertBefore"), [isAncestor]("GI.Gtk.Objects.Widget#g:method:isAncestor"), [isDrawable]("GI.Gtk.Objects.Widget#g:method:isDrawable"), [isFloating]("GI.GObject.Objects.Object#g:method:isFloating"), [isFocus]("GI.Gtk.Objects.Widget#g:method:isFocus"), [isSensitive]("GI.Gtk.Objects.Widget#g:method:isSensitive"), [isVisible]("GI.Gtk.Objects.Widget#g:method:isVisible"), [keynavFailed]("GI.Gtk.Objects.Widget#g:method:keynavFailed"), [listMnemonicLabels]("GI.Gtk.Objects.Widget#g:method:listMnemonicLabels"), [map]("GI.Gtk.Objects.Widget#g:method:map"), [measure]("GI.Gtk.Objects.Widget#g:method:measure"), [mnemonicActivate]("GI.Gtk.Objects.Widget#g:method:mnemonicActivate"), [notify]("GI.GObject.Objects.Object#g:method:notify"), [notifyByPspec]("GI.GObject.Objects.Object#g:method:notifyByPspec"), [observeChildren]("GI.Gtk.Objects.Widget#g:method:observeChildren"), [observeControllers]("GI.Gtk.Objects.Widget#g:method:observeControllers"), [pick]("GI.Gtk.Objects.Widget#g:method:pick"), [queueAllocate]("GI.Gtk.Objects.Widget#g:method:queueAllocate"), [queueDraw]("GI.Gtk.Objects.Widget#g:method:queueDraw"), [queueResize]("GI.Gtk.Objects.Widget#g:method:queueResize"), [realize]("GI.Gtk.Objects.Widget#g:method:realize"), [ref]("GI.GObject.Objects.Object#g:method:ref"), [refSink]("GI.GObject.Objects.Object#g:method:refSink"), [removeController]("GI.Gtk.Objects.Widget#g:method:removeController"), [removeCssClass]("GI.Gtk.Objects.Widget#g:method:removeCssClass"), [removeMnemonicLabel]("GI.Gtk.Objects.Widget#g:method:removeMnemonicLabel"), [removeTickCallback]("GI.Gtk.Objects.Widget#g:method:removeTickCallback"), [resetProperty]("GI.Gtk.Interfaces.Accessible#g:method:resetProperty"), [resetRelation]("GI.Gtk.Interfaces.Accessible#g:method:resetRelation"), [resetState]("GI.Gtk.Interfaces.Accessible#g:method:resetState"), [runDispose]("GI.GObject.Objects.Object#g:method:runDispose"), [shouldLayout]("GI.Gtk.Objects.Widget#g:method:shouldLayout"), [show]("GI.Gtk.Objects.Widget#g:method:show"), [sizeAllocate]("GI.Gtk.Objects.Widget#g:method:sizeAllocate"), [snapshotChild]("GI.Gtk.Objects.Widget#g:method:snapshotChild"), [stealData]("GI.GObject.Objects.Object#g:method:stealData"), [stealQdata]("GI.GObject.Objects.Object#g:method:stealQdata"), [thawNotify]("GI.GObject.Objects.Object#g:method:thawNotify"), [translateCoordinates]("GI.Gtk.Objects.Widget#g:method:translateCoordinates"), [triggerTooltipQuery]("GI.Gtk.Objects.Widget#g:method:triggerTooltipQuery"), [unmap]("GI.Gtk.Objects.Widget#g:method:unmap"), [unparent]("GI.Gtk.Objects.Widget#g:method:unparent"), [unrealize]("GI.Gtk.Objects.Widget#g:method:unrealize"), [unref]("GI.GObject.Objects.Object#g:method:unref"), [unsetStateFlags]("GI.Gtk.Objects.Widget#g:method:unsetStateFlags"), [updateNextAccessibleSibling]("GI.Gtk.Interfaces.Accessible#g:method:updateNextAccessibleSibling"), [updatePlatformState]("GI.Gtk.Interfaces.Accessible#g:method:updatePlatformState"), [updateProperty]("GI.Gtk.Interfaces.Accessible#g:method:updateProperty"), [updateRelation]("GI.Gtk.Interfaces.Accessible#g:method:updateRelation"), [updateState]("GI.Gtk.Interfaces.Accessible#g:method:updateState"), [watchClosure]("GI.GObject.Objects.Object#g:method:watchClosure").
    --
    -- ==== Getters
    -- [getAccessibleId]("GI.Gtk.Interfaces.Accessible#g:method:getAccessibleId"), [getAccessibleParent]("GI.Gtk.Interfaces.Accessible#g:method:getAccessibleParent"), [getAccessibleRole]("GI.Gtk.Interfaces.Accessible#g:method:getAccessibleRole"), [getAllocatedBaseline]("GI.Gtk.Objects.Widget#g:method:getAllocatedBaseline"), [getAllocatedHeight]("GI.Gtk.Objects.Widget#g:method:getAllocatedHeight"), [getAllocatedWidth]("GI.Gtk.Objects.Widget#g:method:getAllocatedWidth"), [getAllocation]("GI.Gtk.Objects.Widget#g:method:getAllocation"), [getAncestor]("GI.Gtk.Objects.Widget#g:method:getAncestor"), [getAtContext]("GI.Gtk.Interfaces.Accessible#g:method:getAtContext"), [getBaseline]("GI.Gtk.Objects.Widget#g:method:getBaseline"), [getBounds]("GI.Gtk.Interfaces.Accessible#g:method:getBounds"), [getBuildableId]("GI.Gtk.Interfaces.Buildable#g:method:getBuildableId"), [getCanFocus]("GI.Gtk.Objects.Widget#g:method:getCanFocus"), [getCanTarget]("GI.Gtk.Objects.Widget#g:method:getCanTarget"), [getChild]("GI.Gtk.Objects.Expander#g:method:getChild"), [getChildVisible]("GI.Gtk.Objects.Widget#g:method:getChildVisible"), [getClipboard]("GI.Gtk.Objects.Widget#g:method:getClipboard"), [getColor]("GI.Gtk.Objects.Widget#g:method:getColor"), [getCssClasses]("GI.Gtk.Objects.Widget#g:method:getCssClasses"), [getCssName]("GI.Gtk.Objects.Widget#g:method:getCssName"), [getCursor]("GI.Gtk.Objects.Widget#g:method:getCursor"), [getData]("GI.GObject.Objects.Object#g:method:getData"), [getDirection]("GI.Gtk.Objects.Widget#g:method:getDirection"), [getDisplay]("GI.Gtk.Objects.Widget#g:method:getDisplay"), [getExpanded]("GI.Gtk.Objects.Expander#g:method:getExpanded"), [getFirstAccessibleChild]("GI.Gtk.Interfaces.Accessible#g:method:getFirstAccessibleChild"), [getFirstChild]("GI.Gtk.Objects.Widget#g:method:getFirstChild"), [getFocusChild]("GI.Gtk.Objects.Widget#g:method:getFocusChild"), [getFocusOnClick]("GI.Gtk.Objects.Widget#g:method:getFocusOnClick"), [getFocusable]("GI.Gtk.Objects.Widget#g:method:getFocusable"), [getFontMap]("GI.Gtk.Objects.Widget#g:method:getFontMap"), [getFontOptions]("GI.Gtk.Objects.Widget#g:method:getFontOptions"), [getFrameClock]("GI.Gtk.Objects.Widget#g:method:getFrameClock"), [getHalign]("GI.Gtk.Objects.Widget#g:method:getHalign"), [getHasTooltip]("GI.Gtk.Objects.Widget#g:method:getHasTooltip"), [getHeight]("GI.Gtk.Objects.Widget#g:method:getHeight"), [getHexpand]("GI.Gtk.Objects.Widget#g:method:getHexpand"), [getHexpandSet]("GI.Gtk.Objects.Widget#g:method:getHexpandSet"), [getLabel]("GI.Gtk.Objects.Expander#g:method:getLabel"), [getLabelWidget]("GI.Gtk.Objects.Expander#g:method:getLabelWidget"), [getLastChild]("GI.Gtk.Objects.Widget#g:method:getLastChild"), [getLayoutManager]("GI.Gtk.Objects.Widget#g:method:getLayoutManager"), [getLimitEvents]("GI.Gtk.Objects.Widget#g:method:getLimitEvents"), [getMapped]("GI.Gtk.Objects.Widget#g:method:getMapped"), [getMarginBottom]("GI.Gtk.Objects.Widget#g:method:getMarginBottom"), [getMarginEnd]("GI.Gtk.Objects.Widget#g:method:getMarginEnd"), [getMarginStart]("GI.Gtk.Objects.Widget#g:method:getMarginStart"), [getMarginTop]("GI.Gtk.Objects.Widget#g:method:getMarginTop"), [getName]("GI.Gtk.Objects.Widget#g:method:getName"), [getNative]("GI.Gtk.Objects.Widget#g:method:getNative"), [getNextAccessibleSibling]("GI.Gtk.Interfaces.Accessible#g:method:getNextAccessibleSibling"), [getNextSibling]("GI.Gtk.Objects.Widget#g:method:getNextSibling"), [getOpacity]("GI.Gtk.Objects.Widget#g:method:getOpacity"), [getOverflow]("GI.Gtk.Objects.Widget#g:method:getOverflow"), [getPangoContext]("GI.Gtk.Objects.Widget#g:method:getPangoContext"), [getParent]("GI.Gtk.Objects.Widget#g:method:getParent"), [getPlatformState]("GI.Gtk.Interfaces.Accessible#g:method:getPlatformState"), [getPreferredSize]("GI.Gtk.Objects.Widget#g:method:getPreferredSize"), [getPrevSibling]("GI.Gtk.Objects.Widget#g:method:getPrevSibling"), [getPrimaryClipboard]("GI.Gtk.Objects.Widget#g:method:getPrimaryClipboard"), [getProperty]("GI.GObject.Objects.Object#g:method:getProperty"), [getQdata]("GI.GObject.Objects.Object#g:method:getQdata"), [getRealized]("GI.Gtk.Objects.Widget#g:method:getRealized"), [getReceivesDefault]("GI.Gtk.Objects.Widget#g:method:getReceivesDefault"), [getRequestMode]("GI.Gtk.Objects.Widget#g:method:getRequestMode"), [getResizeToplevel]("GI.Gtk.Objects.Expander#g:method:getResizeToplevel"), [getRoot]("GI.Gtk.Objects.Widget#g:method:getRoot"), [getScaleFactor]("GI.Gtk.Objects.Widget#g:method:getScaleFactor"), [getSensitive]("GI.Gtk.Objects.Widget#g:method:getSensitive"), [getSettings]("GI.Gtk.Objects.Widget#g:method:getSettings"), [getSize]("GI.Gtk.Objects.Widget#g:method:getSize"), [getSizeRequest]("GI.Gtk.Objects.Widget#g:method:getSizeRequest"), [getStateFlags]("GI.Gtk.Objects.Widget#g:method:getStateFlags"), [getStyleContext]("GI.Gtk.Objects.Widget#g:method:getStyleContext"), [getTemplateChild]("GI.Gtk.Objects.Widget#g:method:getTemplateChild"), [getTooltipMarkup]("GI.Gtk.Objects.Widget#g:method:getTooltipMarkup"), [getTooltipText]("GI.Gtk.Objects.Widget#g:method:getTooltipText"), [getUseMarkup]("GI.Gtk.Objects.Expander#g:method:getUseMarkup"), [getUseUnderline]("GI.Gtk.Objects.Expander#g:method:getUseUnderline"), [getValign]("GI.Gtk.Objects.Widget#g:method:getValign"), [getVexpand]("GI.Gtk.Objects.Widget#g:method:getVexpand"), [getVexpandSet]("GI.Gtk.Objects.Widget#g:method:getVexpandSet"), [getVisible]("GI.Gtk.Objects.Widget#g:method:getVisible"), [getWidth]("GI.Gtk.Objects.Widget#g:method:getWidth").
    --
    -- ==== Setters
    -- [setAccessibleParent]("GI.Gtk.Interfaces.Accessible#g:method:setAccessibleParent"), [setCanFocus]("GI.Gtk.Objects.Widget#g:method:setCanFocus"), [setCanTarget]("GI.Gtk.Objects.Widget#g:method:setCanTarget"), [setChild]("GI.Gtk.Objects.Expander#g:method:setChild"), [setChildVisible]("GI.Gtk.Objects.Widget#g:method:setChildVisible"), [setCssClasses]("GI.Gtk.Objects.Widget#g:method:setCssClasses"), [setCursor]("GI.Gtk.Objects.Widget#g:method:setCursor"), [setCursorFromName]("GI.Gtk.Objects.Widget#g:method:setCursorFromName"), [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [setDirection]("GI.Gtk.Objects.Widget#g:method:setDirection"), [setExpanded]("GI.Gtk.Objects.Expander#g:method:setExpanded"), [setFocusChild]("GI.Gtk.Objects.Widget#g:method:setFocusChild"), [setFocusOnClick]("GI.Gtk.Objects.Widget#g:method:setFocusOnClick"), [setFocusable]("GI.Gtk.Objects.Widget#g:method:setFocusable"), [setFontMap]("GI.Gtk.Objects.Widget#g:method:setFontMap"), [setFontOptions]("GI.Gtk.Objects.Widget#g:method:setFontOptions"), [setHalign]("GI.Gtk.Objects.Widget#g:method:setHalign"), [setHasTooltip]("GI.Gtk.Objects.Widget#g:method:setHasTooltip"), [setHexpand]("GI.Gtk.Objects.Widget#g:method:setHexpand"), [setHexpandSet]("GI.Gtk.Objects.Widget#g:method:setHexpandSet"), [setLabel]("GI.Gtk.Objects.Expander#g:method:setLabel"), [setLabelWidget]("GI.Gtk.Objects.Expander#g:method:setLabelWidget"), [setLayoutManager]("GI.Gtk.Objects.Widget#g:method:setLayoutManager"), [setLimitEvents]("GI.Gtk.Objects.Widget#g:method:setLimitEvents"), [setMarginBottom]("GI.Gtk.Objects.Widget#g:method:setMarginBottom"), [setMarginEnd]("GI.Gtk.Objects.Widget#g:method:setMarginEnd"), [setMarginStart]("GI.Gtk.Objects.Widget#g:method:setMarginStart"), [setMarginTop]("GI.Gtk.Objects.Widget#g:method:setMarginTop"), [setName]("GI.Gtk.Objects.Widget#g:method:setName"), [setOpacity]("GI.Gtk.Objects.Widget#g:method:setOpacity"), [setOverflow]("GI.Gtk.Objects.Widget#g:method:setOverflow"), [setParent]("GI.Gtk.Objects.Widget#g:method:setParent"), [setProperty]("GI.GObject.Objects.Object#g:method:setProperty"), [setReceivesDefault]("GI.Gtk.Objects.Widget#g:method:setReceivesDefault"), [setResizeToplevel]("GI.Gtk.Objects.Expander#g:method:setResizeToplevel"), [setSensitive]("GI.Gtk.Objects.Widget#g:method:setSensitive"), [setSizeRequest]("GI.Gtk.Objects.Widget#g:method:setSizeRequest"), [setStateFlags]("GI.Gtk.Objects.Widget#g:method:setStateFlags"), [setTooltipMarkup]("GI.Gtk.Objects.Widget#g:method:setTooltipMarkup"), [setTooltipText]("GI.Gtk.Objects.Widget#g:method:setTooltipText"), [setUseMarkup]("GI.Gtk.Objects.Expander#g:method:setUseMarkup"), [setUseUnderline]("GI.Gtk.Objects.Expander#g:method:setUseUnderline"), [setValign]("GI.Gtk.Objects.Widget#g:method:setValign"), [setVexpand]("GI.Gtk.Objects.Widget#g:method:setVexpand"), [setVexpandSet]("GI.Gtk.Objects.Widget#g:method:setVexpandSet"), [setVisible]("GI.Gtk.Objects.Widget#g:method:setVisible").

    #if defined(ENABLE_OVERLOADING)
        ResolveExpanderMethod                   ,
    #endif

    -- ** getChild #method:getChild#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetChildMethodInfo              ,
    #endif
        expanderGetChild                        ,

    -- ** getExpanded #method:getExpanded#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetExpandedMethodInfo           ,
    #endif
        expanderGetExpanded                     ,

    -- ** getLabel #method:getLabel#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetLabelMethodInfo              ,
    #endif
        expanderGetLabel                        ,

    -- ** getLabelWidget #method:getLabelWidget#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetLabelWidgetMethodInfo        ,
    #endif
        expanderGetLabelWidget                  ,

    -- ** getResizeToplevel #method:getResizeToplevel#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetResizeToplevelMethodInfo     ,
    #endif
        expanderGetResizeToplevel               ,

    -- ** getUseMarkup #method:getUseMarkup#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetUseMarkupMethodInfo          ,
    #endif
        expanderGetUseMarkup                    ,

    -- ** getUseUnderline #method:getUseUnderline#

    #if defined(ENABLE_OVERLOADING)
        ExpanderGetUseUnderlineMethodInfo       ,
    #endif
        expanderGetUseUnderline                 ,

    -- ** new #method:new#

        expanderNew                             ,

    -- ** newWithMnemonic #method:newWithMnemonic#

        expanderNewWithMnemonic                 ,

    -- ** setChild #method:setChild#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetChildMethodInfo              ,
    #endif
        expanderSetChild                        ,

    -- ** setExpanded #method:setExpanded#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetExpandedMethodInfo           ,
    #endif
        expanderSetExpanded                     ,

    -- ** setLabel #method:setLabel#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetLabelMethodInfo              ,
    #endif
        expanderSetLabel                        ,

    -- ** setLabelWidget #method:setLabelWidget#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetLabelWidgetMethodInfo        ,
    #endif
        expanderSetLabelWidget                  ,

    -- ** setResizeToplevel #method:setResizeToplevel#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetResizeToplevelMethodInfo     ,
    #endif
        expanderSetResizeToplevel               ,

    -- ** setUseMarkup #method:setUseMarkup#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetUseMarkupMethodInfo          ,
    #endif
        expanderSetUseMarkup                    ,

    -- ** setUseUnderline #method:setUseUnderline#

    #if defined(ENABLE_OVERLOADING)
        ExpanderSetUseUnderlineMethodInfo       ,
    #endif
        expanderSetUseUnderline                 ,

     -- * Properties

    -- ** child #attr:child#
    -- | The child widget.

    #if defined(ENABLE_OVERLOADING)
        ExpanderChildPropertyInfo               ,
    #endif
        clearExpanderChild                      ,
        constructExpanderChild                  ,
    #if defined(ENABLE_OVERLOADING)
        expanderChild                           ,
    #endif
        getExpanderChild                        ,
        setExpanderChild                        ,

    -- ** expanded #attr:expanded#
    -- | Whether the expander has been opened to reveal the child.

    #if defined(ENABLE_OVERLOADING)
        ExpanderExpandedPropertyInfo            ,
    #endif
        constructExpanderExpanded               ,
    #if defined(ENABLE_OVERLOADING)
        expanderExpanded                        ,
    #endif
        getExpanderExpanded                     ,
        setExpanderExpanded                     ,

    -- ** label #attr:label#
    -- | The text of the expanders label.

    #if defined(ENABLE_OVERLOADING)
        ExpanderLabelPropertyInfo               ,
    #endif
        clearExpanderLabel                      ,
        constructExpanderLabel                  ,
    #if defined(ENABLE_OVERLOADING)
        expanderLabel                           ,
    #endif
        getExpanderLabel                        ,
        setExpanderLabel                        ,

    -- ** labelWidget #attr:labelWidget#
    -- | A widget to display instead of the usual expander label.

    #if defined(ENABLE_OVERLOADING)
        ExpanderLabelWidgetPropertyInfo         ,
    #endif
        clearExpanderLabelWidget                ,
        constructExpanderLabelWidget            ,
    #if defined(ENABLE_OVERLOADING)
        expanderLabelWidget                     ,
    #endif
        getExpanderLabelWidget                  ,
        setExpanderLabelWidget                  ,

    -- ** resizeToplevel #attr:resizeToplevel#
    -- | When this property is 'P.True', the expander will resize the toplevel
    -- widget containing the expander upon expanding and collapsing.

    #if defined(ENABLE_OVERLOADING)
        ExpanderResizeToplevelPropertyInfo      ,
    #endif
        constructExpanderResizeToplevel         ,
    #if defined(ENABLE_OVERLOADING)
        expanderResizeToplevel                  ,
    #endif
        getExpanderResizeToplevel               ,
        setExpanderResizeToplevel               ,

    -- ** useMarkup #attr:useMarkup#
    -- | Whether the text in the label is Pango markup.

    #if defined(ENABLE_OVERLOADING)
        ExpanderUseMarkupPropertyInfo           ,
    #endif
        constructExpanderUseMarkup              ,
    #if defined(ENABLE_OVERLOADING)
        expanderUseMarkup                       ,
    #endif
        getExpanderUseMarkup                    ,
        setExpanderUseMarkup                    ,

    -- ** useUnderline #attr:useUnderline#
    -- | Whether an underline in the text indicates a mnemonic.

    #if defined(ENABLE_OVERLOADING)
        ExpanderUseUnderlinePropertyInfo        ,
    #endif
        constructExpanderUseUnderline           ,
    #if defined(ENABLE_OVERLOADING)
        expanderUseUnderline                    ,
    #endif
        getExpanderUseUnderline                 ,
        setExpanderUseUnderline                 ,

     -- * Signals

    -- ** activate #signal:activate#

        ExpanderActivateCallback                ,
    #if defined(ENABLE_OVERLOADING)
        ExpanderActivateSignalInfo              ,
    #endif
        afterExpanderActivate                   ,
        onExpanderActivate                      ,

        ) where

    import Data.GI.Base.ShortPrelude
    import qualified Data.GI.Base.ShortPrelude as SP
    import qualified Data.GI.Base.Overloading as O
    import qualified Prelude as P

    import qualified Data.GI.Base.Attributes as GI.Attributes
    import qualified Data.GI.Base.BasicTypes as B.Types
    import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
    import qualified Data.GI.Base.GArray as B.GArray
    import qualified Data.GI.Base.GClosure as B.GClosure
    import qualified Data.GI.Base.GError as B.GError
    import qualified Data.GI.Base.GHashTable as B.GHT
    import qualified Data.GI.Base.GVariant as B.GVariant
    import qualified Data.GI.Base.GValue as B.GValue
    import qualified Data.GI.Base.GParamSpec as B.GParamSpec
    import qualified Data.GI.Base.CallStack as B.CallStack
    import qualified Data.GI.Base.Properties as B.Properties
    import qualified Data.GI.Base.Signals as B.Signals
    import qualified Control.Monad.IO.Class as MIO
    import qualified Data.Coerce as Coerce
    import qualified Data.Text as T
    import qualified Data.Kind as DK
    import qualified Data.ByteString.Char8 as B
    import qualified Data.Map as Map
    import qualified Foreign.Ptr as FP
    import qualified GHC.OverloadedLabels as OL
    import qualified GHC.Records as R
    import qualified Data.Word as DW
    import qualified Data.Int as DI
    import qualified System.Posix.Types as SPT
    import qualified Foreign.C.Types as FCT

    -- Workaround for https://gitlab.haskell.org/ghc/ghc/-/issues/23392
    #if MIN_VERSION_base(4,18,0)
    import qualified GI.Cairo.Structs.Context as Cairo.Context
    import qualified GI.Cairo.Structs.FontOptions as Cairo.FontOptions
    import qualified GI.GLib.Callbacks as GLib.Callbacks
    import qualified GI.GLib.Structs.Bytes as GLib.Bytes
    import qualified GI.GObject.Objects.Object as GObject.Object
    import qualified GI.Gdk.Flags as Gdk.Flags
    import qualified GI.Gdk.Interfaces.Paintable as Gdk.Paintable
    import qualified GI.Gdk.Objects.Clipboard as Gdk.Clipboard
    import qualified GI.Gdk.Objects.Cursor as Gdk.Cursor
    import qualified GI.Gdk.Objects.Device as Gdk.Device
    import qualified GI.Gdk.Objects.Display as Gdk.Display
    import qualified GI.Gdk.Objects.Event as Gdk.Event
    import qualified GI.Gdk.Objects.FrameClock as Gdk.FrameClock
    import qualified GI.Gdk.Objects.Snapshot as Gdk.Snapshot
    import qualified GI.Gdk.Objects.Surface as Gdk.Surface
    import qualified GI.Gdk.Objects.Texture as Gdk.Texture
    import qualified GI.Gdk.Structs.RGBA as Gdk.RGBA
    import qualified GI.Gdk.Structs.Rectangle as Gdk.Rectangle
    import qualified GI.Gio.Interfaces.ActionGroup as Gio.ActionGroup
    import qualified GI.Gio.Interfaces.Icon as Gio.Icon
    import qualified GI.Gio.Interfaces.ListModel as Gio.ListModel
    import qualified GI.Graphene.Structs.Matrix as Graphene.Matrix
    import qualified GI.Graphene.Structs.Point as Graphene.Point
    import qualified GI.Graphene.Structs.Point3D as Graphene.Point3D
    import qualified GI.Graphene.Structs.Rect as Graphene.Rect
    import qualified GI.Graphene.Structs.Size as Graphene.Size
    import qualified GI.Graphene.Structs.Vec3 as Graphene.Vec3
    import qualified GI.Graphene.Structs.Vec4 as Graphene.Vec4
    import qualified GI.Gsk.Enums as Gsk.Enums
    import qualified GI.Gsk.Flags as Gsk.Flags
    import qualified GI.Gsk.Objects.GLShader as Gsk.GLShader
    import qualified GI.Gsk.Objects.RenderNode as Gsk.RenderNode
    import qualified GI.Gsk.Objects.Renderer as Gsk.Renderer
    import qualified GI.Gsk.Structs.ColorStop as Gsk.ColorStop
    import qualified GI.Gsk.Structs.ComponentTransfer as Gsk.ComponentTransfer
    import qualified GI.Gsk.Structs.Path as Gsk.Path
    import qualified GI.Gsk.Structs.RoundedRect as Gsk.RoundedRect
    import qualified GI.Gsk.Structs.Shadow as Gsk.Shadow
    import qualified GI.Gsk.Structs.Stroke as Gsk.Stroke
    import qualified GI.Gsk.Structs.Transform as Gsk.Transform
    import qualified GI.Gtk.Callbacks as Gtk.Callbacks
    import {-# SOURCE #-} qualified GI.Gtk.Enums as Gtk.Enums
    import {-# SOURCE #-} qualified GI.Gtk.Flags as Gtk.Flags
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Accessible as Gtk.Accessible
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Buildable as Gtk.Buildable
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.ConstraintTarget as Gtk.ConstraintTarget
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Native as Gtk.Native
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Root as Gtk.Root
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.StyleProvider as Gtk.StyleProvider
    import {-# SOURCE #-} qualified GI.Gtk.Objects.ATContext as Gtk.ATContext
    import {-# SOURCE #-} qualified GI.Gtk.Objects.EventController as Gtk.EventController
    import {-# SOURCE #-} qualified GI.Gtk.Objects.LayoutChild as Gtk.LayoutChild
    import {-# SOURCE #-} qualified GI.Gtk.Objects.LayoutManager as Gtk.LayoutManager
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Settings as Gtk.Settings
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Snapshot as Gtk.Snapshot
    import {-# SOURCE #-} qualified GI.Gtk.Objects.StyleContext as Gtk.StyleContext
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Tooltip as Gtk.Tooltip
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Widget as Gtk.Widget
    import {-# SOURCE #-} qualified GI.Gtk.Structs.Border as Gtk.Border
    import {-# SOURCE #-} qualified GI.Gtk.Structs.Requisition as Gtk.Requisition
    import qualified GI.Pango.Enums as Pango.Enums
    import qualified GI.Pango.Objects.Context as Pango.Context
    import qualified GI.Pango.Objects.FontMap as Pango.FontMap
    import qualified GI.Pango.Objects.Layout as Pango.Layout

    #else
    import qualified GI.GObject.Objects.Object as GObject.Object
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Accessible as Gtk.Accessible
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Buildable as Gtk.Buildable
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.ConstraintTarget as Gtk.ConstraintTarget
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Widget as Gtk.Widget

    #endif

    -- | Memory-managed wrapper type.
    newtype Expander = Expander (SP.ManagedPtr Expander)
        deriving (Expander -> Expander -> Bool
    (Expander -> Expander -> Bool)
    -> (Expander -> Expander -> Bool) -> Eq Expander
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: Expander -> Expander -> Bool
    == :: Expander -> Expander -> Bool
    $c/= :: Expander -> Expander -> Bool
    /= :: Expander -> Expander -> Bool
    Eq)

    instance SP.ManagedPtrNewtype Expander where
        toManagedPtr :: Expander -> ManagedPtr Expander
    toManagedPtr (Expander ManagedPtr Expander
    p) = ManagedPtr Expander
    p

    foreign import ccall "gtk_expander_get_type"
        c_gtk_expander_get_type :: IO B.Types.GType

    instance B.Types.TypedObject Expander where
        glibType :: IO GType
    glibType = IO GType
    c_gtk_expander_get_type

    instance B.Types.GObject Expander

    -- | Type class for types which can be safely cast to t'Expander', for instance with `toExpander`.
    class (SP.GObject o, O.IsDescendantOf Expander o) => IsExpander o
    instance (SP.GObject o, O.IsDescendantOf Expander o) => IsExpander o

    instance O.HasParentTypes Expander
    type instance O.ParentTypes Expander = '[Gtk.Widget.Widget, GObject.Object.Object, Gtk.Accessible.Accessible, Gtk.Buildable.Buildable, Gtk.ConstraintTarget.ConstraintTarget]

    -- | Cast to t'Expander', for types for which this is known to be safe. For general casts, use 'Data.GI.Base.ManagedPtr.castTo'.
    toExpander :: (MIO.MonadIO m, IsExpander o) => o -> m Expander
    toExpander :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> m Expander
    toExpander = IO Expander -> m Expander
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Expander -> m Expander)
    -> (o -> IO Expander) -> o -> m Expander
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . (ManagedPtr Expander -> Expander) -> o -> IO Expander
    forall o o'.
    (HasCallStack, ManagedPtrNewtype o, TypedObject o,
     ManagedPtrNewtype o', TypedObject o') =>
    (ManagedPtr o' -> o') -> o -> IO o'
    B.ManagedPtr.unsafeCastTo ManagedPtr Expander -> Expander
    Expander

    -- | Convert t'Expander' to and from t'Data.GI.Base.GValue.GValue'. See 'Data.GI.Base.GValue.toGValue' and 'Data.GI.Base.GValue.fromGValue'.
    instance B.GValue.IsGValue (Maybe Expander) where
        gvalueGType_ :: IO GType
    gvalueGType_ = IO GType
    c_gtk_expander_get_type
        gvalueSet_ :: Ptr GValue -> Maybe Expander -> IO ()
    gvalueSet_ Ptr GValue
    gv Maybe Expander
    P.Nothing = Ptr GValue -> Ptr Expander -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv (Ptr Expander
    forall a. Ptr a
    FP.nullPtr :: FP.Ptr Expander)
        gvalueSet_ Ptr GValue
    gv (P.Just Expander
    obj) = Expander -> (Ptr Expander -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr Expander
    obj (Ptr GValue -> Ptr Expander -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv)
        gvalueGet_ :: Ptr GValue -> IO (Maybe Expander)
    gvalueGet_ Ptr GValue
    gv = do
            ptr <- Ptr GValue -> IO (Ptr Expander)
    forall a. GObject a => Ptr GValue -> IO (Ptr a)
    B.GValue.get_object Ptr GValue
    gv :: IO (FP.Ptr Expander)
            if ptr /= FP.nullPtr
            then P.Just <$> B.ManagedPtr.newObject Expander ptr
            else return P.Nothing

    #if defined(ENABLE_OVERLOADING)
    type family ResolveExpanderMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where
        ResolveExpanderMethod "actionSetEnabled" o = Gtk.Widget.WidgetActionSetEnabledMethodInfo
        ResolveExpanderMethod "activate" o = Gtk.Widget.WidgetActivateMethodInfo
        ResolveExpanderMethod "activateAction" o = Gtk.Widget.WidgetActivateActionMethodInfo
        ResolveExpanderMethod "activateDefault" o = Gtk.Widget.WidgetActivateDefaultMethodInfo
        ResolveExpanderMethod "addController" o = Gtk.Widget.WidgetAddControllerMethodInfo
        ResolveExpanderMethod "addCssClass" o = Gtk.Widget.WidgetAddCssClassMethodInfo
        ResolveExpanderMethod "addMnemonicLabel" o = Gtk.Widget.WidgetAddMnemonicLabelMethodInfo
        ResolveExpanderMethod "addTickCallback" o = Gtk.Widget.WidgetAddTickCallbackMethodInfo
        ResolveExpanderMethod "allocate" o = Gtk.Widget.WidgetAllocateMethodInfo
        ResolveExpanderMethod "announce" o = Gtk.Accessible.AccessibleAnnounceMethodInfo
        ResolveExpanderMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo
        ResolveExpanderMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo
        ResolveExpanderMethod "childFocus" o = Gtk.Widget.WidgetChildFocusMethodInfo
        ResolveExpanderMethod "computeBounds" o = Gtk.Widget.WidgetComputeBoundsMethodInfo
        ResolveExpanderMethod "computeExpand" o = Gtk.Widget.WidgetComputeExpandMethodInfo
        ResolveExpanderMethod "computePoint" o = Gtk.Widget.WidgetComputePointMethodInfo
        ResolveExpanderMethod "computeTransform" o = Gtk.Widget.WidgetComputeTransformMethodInfo
        ResolveExpanderMethod "contains" o = Gtk.Widget.WidgetContainsMethodInfo
        ResolveExpanderMethod "createPangoContext" o = Gtk.Widget.WidgetCreatePangoContextMethodInfo
        ResolveExpanderMethod "createPangoLayout" o = Gtk.Widget.WidgetCreatePangoLayoutMethodInfo
        ResolveExpanderMethod "disposeTemplate" o = Gtk.Widget.WidgetDisposeTemplateMethodInfo
        ResolveExpanderMethod "dragCheckThreshold" o = Gtk.Widget.WidgetDragCheckThresholdMethodInfo
        ResolveExpanderMethod "errorBell" o = Gtk.Widget.WidgetErrorBellMethodInfo
        ResolveExpanderMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo
        ResolveExpanderMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo
        ResolveExpanderMethod "getv" o = GObject.Object.ObjectGetvMethodInfo
        ResolveExpanderMethod "grabFocus" o = Gtk.Widget.WidgetGrabFocusMethodInfo
        ResolveExpanderMethod "hasCssClass" o = Gtk.Widget.WidgetHasCssClassMethodInfo
        ResolveExpanderMethod "hasDefault" o = Gtk.Widget.WidgetHasDefaultMethodInfo
        ResolveExpanderMethod "hasFocus" o = Gtk.Widget.WidgetHasFocusMethodInfo
        ResolveExpanderMethod "hasVisibleFocus" o = Gtk.Widget.WidgetHasVisibleFocusMethodInfo
        ResolveExpanderMethod "hide" o = Gtk.Widget.WidgetHideMethodInfo
        ResolveExpanderMethod "inDestruction" o = Gtk.Widget.WidgetInDestructionMethodInfo
        ResolveExpanderMethod "initTemplate" o = Gtk.Widget.WidgetInitTemplateMethodInfo
        ResolveExpanderMethod "insertActionGroup" o = Gtk.Widget.WidgetInsertActionGroupMethodInfo
        ResolveExpanderMethod "insertAfter" o = Gtk.Widget.WidgetInsertAfterMethodInfo
        ResolveExpanderMethod "insertBefore" o = Gtk.Widget.WidgetInsertBeforeMethodInfo
        ResolveExpanderMethod "isAncestor" o = Gtk.Widget.WidgetIsAncestorMethodInfo
        ResolveExpanderMethod "isDrawable" o = Gtk.Widget.WidgetIsDrawableMethodInfo
        ResolveExpanderMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo
        ResolveExpanderMethod "isFocus" o = Gtk.Widget.WidgetIsFocusMethodInfo
        ResolveExpanderMethod "isSensitive" o = Gtk.Widget.WidgetIsSensitiveMethodInfo
        ResolveExpanderMethod "isVisible" o = Gtk.Widget.WidgetIsVisibleMethodInfo
        ResolveExpanderMethod "keynavFailed" o = Gtk.Widget.WidgetKeynavFailedMethodInfo
        ResolveExpanderMethod "listMnemonicLabels" o = Gtk.Widget.WidgetListMnemonicLabelsMethodInfo
        ResolveExpanderMethod "map" o = Gtk.Widget.WidgetMapMethodInfo
        ResolveExpanderMethod "measure" o = Gtk.Widget.WidgetMeasureMethodInfo
        ResolveExpanderMethod "mnemonicActivate" o = Gtk.Widget.WidgetMnemonicActivateMethodInfo
        ResolveExpanderMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo
        ResolveExpanderMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo
        ResolveExpanderMethod "observeChildren" o = Gtk.Widget.WidgetObserveChildrenMethodInfo
        ResolveExpanderMethod "observeControllers" o = Gtk.Widget.WidgetObserveControllersMethodInfo
        ResolveExpanderMethod "pick" o = Gtk.Widget.WidgetPickMethodInfo
        ResolveExpanderMethod "queueAllocate" o = Gtk.Widget.WidgetQueueAllocateMethodInfo
        ResolveExpanderMethod "queueDraw" o = Gtk.Widget.WidgetQueueDrawMethodInfo
        ResolveExpanderMethod "queueResize" o = Gtk.Widget.WidgetQueueResizeMethodInfo
        ResolveExpanderMethod "realize" o = Gtk.Widget.WidgetRealizeMethodInfo
        ResolveExpanderMethod "ref" o = GObject.Object.ObjectRefMethodInfo
        ResolveExpanderMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo
        ResolveExpanderMethod "removeController" o = Gtk.Widget.WidgetRemoveControllerMethodInfo
        ResolveExpanderMethod "removeCssClass" o = Gtk.Widget.WidgetRemoveCssClassMethodInfo
        ResolveExpanderMethod "removeMnemonicLabel" o = Gtk.Widget.WidgetRemoveMnemonicLabelMethodInfo
        ResolveExpanderMethod "removeTickCallback" o = Gtk.Widget.WidgetRemoveTickCallbackMethodInfo
        ResolveExpanderMethod "resetProperty" o = Gtk.Accessible.AccessibleResetPropertyMethodInfo
        ResolveExpanderMethod "resetRelation" o = Gtk.Accessible.AccessibleResetRelationMethodInfo
        ResolveExpanderMethod "resetState" o = Gtk.Accessible.AccessibleResetStateMethodInfo
        ResolveExpanderMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo
        ResolveExpanderMethod "shouldLayout" o = Gtk.Widget.WidgetShouldLayoutMethodInfo
        ResolveExpanderMethod "show" o = Gtk.Widget.WidgetShowMethodInfo
        ResolveExpanderMethod "sizeAllocate" o = Gtk.Widget.WidgetSizeAllocateMethodInfo
        ResolveExpanderMethod "snapshotChild" o = Gtk.Widget.WidgetSnapshotChildMethodInfo
        ResolveExpanderMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo
        ResolveExpanderMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo
        ResolveExpanderMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo
        ResolveExpanderMethod "translateCoordinates" o = Gtk.Widget.WidgetTranslateCoordinatesMethodInfo
        ResolveExpanderMethod "triggerTooltipQuery" o = Gtk.Widget.WidgetTriggerTooltipQueryMethodInfo
        ResolveExpanderMethod "unmap" o = Gtk.Widget.WidgetUnmapMethodInfo
        ResolveExpanderMethod "unparent" o = Gtk.Widget.WidgetUnparentMethodInfo
        ResolveExpanderMethod "unrealize" o = Gtk.Widget.WidgetUnrealizeMethodInfo
        ResolveExpanderMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo
        ResolveExpanderMethod "unsetStateFlags" o = Gtk.Widget.WidgetUnsetStateFlagsMethodInfo
        ResolveExpanderMethod "updateNextAccessibleSibling" o = Gtk.Accessible.AccessibleUpdateNextAccessibleSiblingMethodInfo
        ResolveExpanderMethod "updatePlatformState" o = Gtk.Accessible.AccessibleUpdatePlatformStateMethodInfo
        ResolveExpanderMethod "updateProperty" o = Gtk.Accessible.AccessibleUpdatePropertyMethodInfo
        ResolveExpanderMethod "updateRelation" o = Gtk.Accessible.AccessibleUpdateRelationMethodInfo
        ResolveExpanderMethod "updateState" o = Gtk.Accessible.AccessibleUpdateStateMethodInfo
        ResolveExpanderMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo
        ResolveExpanderMethod "getAccessibleId" o = Gtk.Accessible.AccessibleGetAccessibleIdMethodInfo
        ResolveExpanderMethod "getAccessibleParent" o = Gtk.Accessible.AccessibleGetAccessibleParentMethodInfo
        ResolveExpanderMethod "getAccessibleRole" o = Gtk.Accessible.AccessibleGetAccessibleRoleMethodInfo
        ResolveExpanderMethod "getAllocatedBaseline" o = Gtk.Widget.WidgetGetAllocatedBaselineMethodInfo
        ResolveExpanderMethod "getAllocatedHeight" o = Gtk.Widget.WidgetGetAllocatedHeightMethodInfo
        ResolveExpanderMethod "getAllocatedWidth" o = Gtk.Widget.WidgetGetAllocatedWidthMethodInfo
        ResolveExpanderMethod "getAllocation" o = Gtk.Widget.WidgetGetAllocationMethodInfo
        ResolveExpanderMethod "getAncestor" o = Gtk.Widget.WidgetGetAncestorMethodInfo
        ResolveExpanderMethod "getAtContext" o = Gtk.Accessible.AccessibleGetAtContextMethodInfo
        ResolveExpanderMethod "getBaseline" o = Gtk.Widget.WidgetGetBaselineMethodInfo
        ResolveExpanderMethod "getBounds" o = Gtk.Accessible.AccessibleGetBoundsMethodInfo
        ResolveExpanderMethod "getBuildableId" o = Gtk.Buildable.BuildableGetBuildableIdMethodInfo
        ResolveExpanderMethod "getCanFocus" o = Gtk.Widget.WidgetGetCanFocusMethodInfo
        ResolveExpanderMethod "getCanTarget" o = Gtk.Widget.WidgetGetCanTargetMethodInfo
        ResolveExpanderMethod "getChild" o = ExpanderGetChildMethodInfo
        ResolveExpanderMethod "getChildVisible" o = Gtk.Widget.WidgetGetChildVisibleMethodInfo
        ResolveExpanderMethod "getClipboard" o = Gtk.Widget.WidgetGetClipboardMethodInfo
        ResolveExpanderMethod "getColor" o = Gtk.Widget.WidgetGetColorMethodInfo
        ResolveExpanderMethod "getCssClasses" o = Gtk.Widget.WidgetGetCssClassesMethodInfo
        ResolveExpanderMethod "getCssName" o = Gtk.Widget.WidgetGetCssNameMethodInfo
        ResolveExpanderMethod "getCursor" o = Gtk.Widget.WidgetGetCursorMethodInfo
        ResolveExpanderMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo
        ResolveExpanderMethod "getDirection" o = Gtk.Widget.WidgetGetDirectionMethodInfo
        ResolveExpanderMethod "getDisplay" o = Gtk.Widget.WidgetGetDisplayMethodInfo
        ResolveExpanderMethod "getExpanded" o = ExpanderGetExpandedMethodInfo
        ResolveExpanderMethod "getFirstAccessibleChild" o = Gtk.Accessible.AccessibleGetFirstAccessibleChildMethodInfo
        ResolveExpanderMethod "getFirstChild" o = Gtk.Widget.WidgetGetFirstChildMethodInfo
        ResolveExpanderMethod "getFocusChild" o = Gtk.Widget.WidgetGetFocusChildMethodInfo
        ResolveExpanderMethod "getFocusOnClick" o = Gtk.Widget.WidgetGetFocusOnClickMethodInfo
        ResolveExpanderMethod "getFocusable" o = Gtk.Widget.WidgetGetFocusableMethodInfo
        ResolveExpanderMethod "getFontMap" o = Gtk.Widget.WidgetGetFontMapMethodInfo
        ResolveExpanderMethod "getFontOptions" o = Gtk.Widget.WidgetGetFontOptionsMethodInfo
        ResolveExpanderMethod "getFrameClock" o = Gtk.Widget.WidgetGetFrameClockMethodInfo
        ResolveExpanderMethod "getHalign" o = Gtk.Widget.WidgetGetHalignMethodInfo
        ResolveExpanderMethod "getHasTooltip" o = Gtk.Widget.WidgetGetHasTooltipMethodInfo
        ResolveExpanderMethod "getHeight" o = Gtk.Widget.WidgetGetHeightMethodInfo
        ResolveExpanderMethod "getHexpand" o = Gtk.Widget.WidgetGetHexpandMethodInfo
        ResolveExpanderMethod "getHexpandSet" o = Gtk.Widget.WidgetGetHexpandSetMethodInfo
        ResolveExpanderMethod "getLabel" o = ExpanderGetLabelMethodInfo
        ResolveExpanderMethod "getLabelWidget" o = ExpanderGetLabelWidgetMethodInfo
        ResolveExpanderMethod "getLastChild" o = Gtk.Widget.WidgetGetLastChildMethodInfo
        ResolveExpanderMethod "getLayoutManager" o = Gtk.Widget.WidgetGetLayoutManagerMethodInfo
        ResolveExpanderMethod "getLimitEvents" o = Gtk.Widget.WidgetGetLimitEventsMethodInfo
        ResolveExpanderMethod "getMapped" o = Gtk.Widget.WidgetGetMappedMethodInfo
        ResolveExpanderMethod "getMarginBottom" o = Gtk.Widget.WidgetGetMarginBottomMethodInfo
        ResolveExpanderMethod "getMarginEnd" o = Gtk.Widget.WidgetGetMarginEndMethodInfo
        ResolveExpanderMethod "getMarginStart" o = Gtk.Widget.WidgetGetMarginStartMethodInfo
        ResolveExpanderMethod "getMarginTop" o = Gtk.Widget.WidgetGetMarginTopMethodInfo
        ResolveExpanderMethod "getName" o = Gtk.Widget.WidgetGetNameMethodInfo
        ResolveExpanderMethod "getNative" o = Gtk.Widget.WidgetGetNativeMethodInfo
        ResolveExpanderMethod "getNextAccessibleSibling" o = Gtk.Accessible.AccessibleGetNextAccessibleSiblingMethodInfo
        ResolveExpanderMethod "getNextSibling" o = Gtk.Widget.WidgetGetNextSiblingMethodInfo
        ResolveExpanderMethod "getOpacity" o = Gtk.Widget.WidgetGetOpacityMethodInfo
        ResolveExpanderMethod "getOverflow" o = Gtk.Widget.WidgetGetOverflowMethodInfo
        ResolveExpanderMethod "getPangoContext" o = Gtk.Widget.WidgetGetPangoContextMethodInfo
        ResolveExpanderMethod "getParent" o = Gtk.Widget.WidgetGetParentMethodInfo
        ResolveExpanderMethod "getPlatformState" o = Gtk.Accessible.AccessibleGetPlatformStateMethodInfo
        ResolveExpanderMethod "getPreferredSize" o = Gtk.Widget.WidgetGetPreferredSizeMethodInfo
        ResolveExpanderMethod "getPrevSibling" o = Gtk.Widget.WidgetGetPrevSiblingMethodInfo
        ResolveExpanderMethod "getPrimaryClipboard" o = Gtk.Widget.WidgetGetPrimaryClipboardMethodInfo
        ResolveExpanderMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo
        ResolveExpanderMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo
        ResolveExpanderMethod "getRealized" o = Gtk.Widget.WidgetGetRealizedMethodInfo
        ResolveExpanderMethod "getReceivesDefault" o = Gtk.Widget.WidgetGetReceivesDefaultMethodInfo
        ResolveExpanderMethod "getRequestMode" o = Gtk.Widget.WidgetGetRequestModeMethodInfo
        ResolveExpanderMethod "getResizeToplevel" o = ExpanderGetResizeToplevelMethodInfo
        ResolveExpanderMethod "getRoot" o = Gtk.Widget.WidgetGetRootMethodInfo
        ResolveExpanderMethod "getScaleFactor" o = Gtk.Widget.WidgetGetScaleFactorMethodInfo
        ResolveExpanderMethod "getSensitive" o = Gtk.Widget.WidgetGetSensitiveMethodInfo
        ResolveExpanderMethod "getSettings" o = Gtk.Widget.WidgetGetSettingsMethodInfo
        ResolveExpanderMethod "getSize" o = Gtk.Widget.WidgetGetSizeMethodInfo
        ResolveExpanderMethod "getSizeRequest" o = Gtk.Widget.WidgetGetSizeRequestMethodInfo
        ResolveExpanderMethod "getStateFlags" o = Gtk.Widget.WidgetGetStateFlagsMethodInfo
        ResolveExpanderMethod "getStyleContext" o = Gtk.Widget.WidgetGetStyleContextMethodInfo
        ResolveExpanderMethod "getTemplateChild" o = Gtk.Widget.WidgetGetTemplateChildMethodInfo
        ResolveExpanderMethod "getTooltipMarkup" o = Gtk.Widget.WidgetGetTooltipMarkupMethodInfo
        ResolveExpanderMethod "getTooltipText" o = Gtk.Widget.WidgetGetTooltipTextMethodInfo
        ResolveExpanderMethod "getUseMarkup" o = ExpanderGetUseMarkupMethodInfo
        ResolveExpanderMethod "getUseUnderline" o = ExpanderGetUseUnderlineMethodInfo
        ResolveExpanderMethod "getValign" o = Gtk.Widget.WidgetGetValignMethodInfo
        ResolveExpanderMethod "getVexpand" o = Gtk.Widget.WidgetGetVexpandMethodInfo
        ResolveExpanderMethod "getVexpandSet" o = Gtk.Widget.WidgetGetVexpandSetMethodInfo
        ResolveExpanderMethod "getVisible" o = Gtk.Widget.WidgetGetVisibleMethodInfo
        ResolveExpanderMethod "getWidth" o = Gtk.Widget.WidgetGetWidthMethodInfo
        ResolveExpanderMethod "setAccessibleParent" o = Gtk.Accessible.AccessibleSetAccessibleParentMethodInfo
        ResolveExpanderMethod "setCanFocus" o = Gtk.Widget.WidgetSetCanFocusMethodInfo
        ResolveExpanderMethod "setCanTarget" o = Gtk.Widget.WidgetSetCanTargetMethodInfo
        ResolveExpanderMethod "setChild" o = ExpanderSetChildMethodInfo
        ResolveExpanderMethod "setChildVisible" o = Gtk.Widget.WidgetSetChildVisibleMethodInfo
        ResolveExpanderMethod "setCssClasses" o = Gtk.Widget.WidgetSetCssClassesMethodInfo
        ResolveExpanderMethod "setCursor" o = Gtk.Widget.WidgetSetCursorMethodInfo
        ResolveExpanderMethod "setCursorFromName" o = Gtk.Widget.WidgetSetCursorFromNameMethodInfo
        ResolveExpanderMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
        ResolveExpanderMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo
        ResolveExpanderMethod "setDirection" o = Gtk.Widget.WidgetSetDirectionMethodInfo
        ResolveExpanderMethod "setExpanded" o = ExpanderSetExpandedMethodInfo
        ResolveExpanderMethod "setFocusChild" o = Gtk.Widget.WidgetSetFocusChildMethodInfo
        ResolveExpanderMethod "setFocusOnClick" o = Gtk.Widget.WidgetSetFocusOnClickMethodInfo
        ResolveExpanderMethod "setFocusable" o = Gtk.Widget.WidgetSetFocusableMethodInfo
        ResolveExpanderMethod "setFontMap" o = Gtk.Widget.WidgetSetFontMapMethodInfo
        ResolveExpanderMethod "setFontOptions" o = Gtk.Widget.WidgetSetFontOptionsMethodInfo
        ResolveExpanderMethod "setHalign" o = Gtk.Widget.WidgetSetHalignMethodInfo
        ResolveExpanderMethod "setHasTooltip" o = Gtk.Widget.WidgetSetHasTooltipMethodInfo
        ResolveExpanderMethod "setHexpand" o = Gtk.Widget.WidgetSetHexpandMethodInfo
        ResolveExpanderMethod "setHexpandSet" o = Gtk.Widget.WidgetSetHexpandSetMethodInfo
        ResolveExpanderMethod "setLabel" o = ExpanderSetLabelMethodInfo
        ResolveExpanderMethod "setLabelWidget" o = ExpanderSetLabelWidgetMethodInfo
        ResolveExpanderMethod "setLayoutManager" o = Gtk.Widget.WidgetSetLayoutManagerMethodInfo
        ResolveExpanderMethod "setLimitEvents" o = Gtk.Widget.WidgetSetLimitEventsMethodInfo
        ResolveExpanderMethod "setMarginBottom" o = Gtk.Widget.WidgetSetMarginBottomMethodInfo
        ResolveExpanderMethod "setMarginEnd" o = Gtk.Widget.WidgetSetMarginEndMethodInfo
        ResolveExpanderMethod "setMarginStart" o = Gtk.Widget.WidgetSetMarginStartMethodInfo
        ResolveExpanderMethod "setMarginTop" o = Gtk.Widget.WidgetSetMarginTopMethodInfo
        ResolveExpanderMethod "setName" o = Gtk.Widget.WidgetSetNameMethodInfo
        ResolveExpanderMethod "setOpacity" o = Gtk.Widget.WidgetSetOpacityMethodInfo
        ResolveExpanderMethod "setOverflow" o = Gtk.Widget.WidgetSetOverflowMethodInfo
        ResolveExpanderMethod "setParent" o = Gtk.Widget.WidgetSetParentMethodInfo
        ResolveExpanderMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo
        ResolveExpanderMethod "setReceivesDefault" o = Gtk.Widget.WidgetSetReceivesDefaultMethodInfo
        ResolveExpanderMethod "setResizeToplevel" o = ExpanderSetResizeToplevelMethodInfo
        ResolveExpanderMethod "setSensitive" o = Gtk.Widget.WidgetSetSensitiveMethodInfo
        ResolveExpanderMethod "setSizeRequest" o = Gtk.Widget.WidgetSetSizeRequestMethodInfo
        ResolveExpanderMethod "setStateFlags" o = Gtk.Widget.WidgetSetStateFlagsMethodInfo
        ResolveExpanderMethod "setTooltipMarkup" o = Gtk.Widget.WidgetSetTooltipMarkupMethodInfo
        ResolveExpanderMethod "setTooltipText" o = Gtk.Widget.WidgetSetTooltipTextMethodInfo
        ResolveExpanderMethod "setUseMarkup" o = ExpanderSetUseMarkupMethodInfo
        ResolveExpanderMethod "setUseUnderline" o = ExpanderSetUseUnderlineMethodInfo
        ResolveExpanderMethod "setValign" o = Gtk.Widget.WidgetSetValignMethodInfo
        ResolveExpanderMethod "setVexpand" o = Gtk.Widget.WidgetSetVexpandMethodInfo
        ResolveExpanderMethod "setVexpandSet" o = Gtk.Widget.WidgetSetVexpandSetMethodInfo
        ResolveExpanderMethod "setVisible" o = Gtk.Widget.WidgetSetVisibleMethodInfo
        ResolveExpanderMethod l o = O.MethodResolutionFailed l o

    instance (info ~ ResolveExpanderMethod t Expander, O.OverloadedMethod info Expander p) => OL.IsLabel t (Expander -> p) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.overloadedMethod @info
    #else
        fromLabel _ = O.overloadedMethod @info
    #endif

    #if MIN_VERSION_base(4,13,0)
    instance (info ~ ResolveExpanderMethod t Expander, O.OverloadedMethod info Expander p, R.HasField t Expander p) => R.HasField t Expander p where
        getField = O.overloadedMethod @info

    #endif

    instance (info ~ ResolveExpanderMethod t Expander, O.OverloadedMethodInfo info Expander) => OL.IsLabel t (O.MethodProxy info Expander) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.MethodProxy
    #else
        fromLabel _ = O.MethodProxy
    #endif

    #endif

    -- signal Expander::activate
    -- | Activates the @GtkExpander@.
    type ExpanderActivateCallback =
        IO ()

    type C_ExpanderActivateCallback =
        Ptr Expander ->                         -- object
        Ptr () ->                               -- user_data
        IO ()

    -- | Generate a function pointer callable from C code, from a `C_ExpanderActivateCallback`.
    foreign import ccall "wrapper"
        mk_ExpanderActivateCallback :: C_ExpanderActivateCallback -> IO (FunPtr C_ExpanderActivateCallback)

    wrap_ExpanderActivateCallback ::
        GObject a => (a -> ExpanderActivateCallback) ->
        C_ExpanderActivateCallback
    wrap_ExpanderActivateCallback :: forall a. GObject a => (a -> IO ()) -> C_ExpanderActivateCallback
    wrap_ExpanderActivateCallback a -> IO ()
    gi'cb Ptr Expander
    gi'selfPtr Ptr ()
    _ = do
        Ptr Expander -> (Expander -> IO ()) -> IO ()
    forall o b.
    (HasCallStack, GObject o) =>
    Ptr o -> (o -> IO b) -> IO b
    B.ManagedPtr.withNewObject Ptr Expander
    gi'selfPtr ((Expander -> IO ()) -> IO ()) -> (Expander -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \Expander
    gi'self -> a -> IO ()
    gi'cb (Expander -> a
    forall a b. Coercible a b => a -> b
    Coerce.coerce Expander
    gi'self)

    -- | Connect a signal handler for the [activate](#signal:activate) signal, to be run before the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.on' expander #activate callback
    -- @
    --
    --
    onExpanderActivate :: (IsExpander a, MonadIO m) => a -> ((?self :: a) => ExpanderActivateCallback) -> m SignalHandlerId
    onExpanderActivate :: forall a (m :: * -> *).
    (IsExpander a, MonadIO m) =>
    a -> ((?self::a) => IO ()) -> m SignalHandlerId
    onExpanderActivate a
    obj (?self::a) => IO ()
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> IO ()
    wrapped a
    self = let ?self = a
    ?self::a
    self in IO ()
    (?self::a) => IO ()
    cb
        let wrapped' :: C_ExpanderActivateCallback
    wrapped' = (a -> IO ()) -> C_ExpanderActivateCallback
    forall a. GObject a => (a -> IO ()) -> C_ExpanderActivateCallback
    wrap_ExpanderActivateCallback a -> IO ()
    wrapped
        wrapped'' <- C_ExpanderActivateCallback
    -> IO (FunPtr C_ExpanderActivateCallback)
    mk_ExpanderActivateCallback C_ExpanderActivateCallback
    wrapped'
        connectSignalFunPtr obj "activate" wrapped'' SignalConnectBefore Nothing

    -- | Connect a signal handler for the [activate](#signal:activate) signal, to be run after the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.after' expander #activate callback
    -- @
    --
    --
    --
    -- By default the object invoking the signal is not passed to the callback.
    -- If you need to access it, you can use the implit @?self@ parameter.
    -- Note that this requires activating the @ImplicitParams@ GHC extension.
    --
    afterExpanderActivate :: (IsExpander a, MonadIO m) => a -> ((?self :: a) => ExpanderActivateCallback) -> m SignalHandlerId
    afterExpanderActivate :: forall a (m :: * -> *).
    (IsExpander a, MonadIO m) =>
    a -> ((?self::a) => IO ()) -> m SignalHandlerId
    afterExpanderActivate a
    obj (?self::a) => IO ()
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> IO ()
    wrapped a
    self = let ?self = a
    ?self::a
    self in IO ()
    (?self::a) => IO ()
    cb
        let wrapped' :: C_ExpanderActivateCallback
    wrapped' = (a -> IO ()) -> C_ExpanderActivateCallback
    forall a. GObject a => (a -> IO ()) -> C_ExpanderActivateCallback
    wrap_ExpanderActivateCallback a -> IO ()
    wrapped
        wrapped'' <- C_ExpanderActivateCallback
    -> IO (FunPtr C_ExpanderActivateCallback)
    mk_ExpanderActivateCallback C_ExpanderActivateCallback
    wrapped'
        connectSignalFunPtr obj "activate" wrapped'' SignalConnectAfter Nothing

    #if defined(ENABLE_OVERLOADING)
    data ExpanderActivateSignalInfo
    instance SignalInfo ExpanderActivateSignalInfo where
        type HaskellCallbackType ExpanderActivateSignalInfo = ExpanderActivateCallback
        connectSignal obj cb connectMode detail = do
            let cb' = wrap_ExpanderActivateCallback cb
            cb'' <- mk_ExpanderActivateCallback cb'
            connectSignalFunPtr obj "activate" cb'' connectMode detail
        dbgSignalInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander::activate"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:signal:activate"})

    #endif

    -- VVV Prop "child"
       -- Type: TInterface (Name {namespace = "Gtk", name = "Widget"})
       -- Flags: [PropertyReadable,PropertyWritable]
       -- Nullable: (Just True,Just True)

    -- | Get the value of the “@child@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #child
    -- @
    getExpanderChild :: (MonadIO m, IsExpander o) => o -> m (Maybe Gtk.Widget.Widget)
    getExpanderChild :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> m (Maybe Widget)
    getExpanderChild o
    obj = IO (Maybe Widget) -> m (Maybe Widget)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (Maybe Widget) -> m (Maybe Widget))
    -> IO (Maybe Widget) -> m (Maybe Widget)
    forall a b. (a -> b) -> a -> b
    $ o -> String -> (ManagedPtr Widget -> Widget) -> IO (Maybe Widget)
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> (ManagedPtr b -> b) -> IO (Maybe b)
    B.Properties.getObjectPropertyObject o
    obj String
    "child" ManagedPtr Widget -> Widget
    Gtk.Widget.Widget

    -- | Set the value of the “@child@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #child 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderChild :: (MonadIO m, IsExpander o, Gtk.Widget.IsWidget a) => o -> a -> m ()
    setExpanderChild :: forall (m :: * -> *) o a.
    (MonadIO m, IsExpander o, IsWidget a) =>
    o -> a -> m ()
    setExpanderChild o
    obj a
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Maybe a -> IO ()
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> Maybe b -> IO ()
    B.Properties.setObjectPropertyObject o
    obj String
    "child" (a -> Maybe a
    forall a. a -> Maybe a
    Just a
    val)

    -- | Construct a t'GValueConstruct' with valid value for the “@child@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderChild :: (IsExpander o, MIO.MonadIO m, Gtk.Widget.IsWidget a) => a -> m (GValueConstruct o)
    constructExpanderChild :: forall o (m :: * -> *) a.
    (IsExpander o, MonadIO m, IsWidget a) =>
    a -> m (GValueConstruct o)
    constructExpanderChild a
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Maybe a -> IO (GValueConstruct o)
    forall a o.
    GObject a =>
    String -> Maybe a -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyObject String
    "child" (a -> Maybe a
    forall a. a -> Maybe a
    P.Just a
    val)

    -- | Set the value of the “@child@” property to `Nothing`.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.clear' #child
    -- @
    clearExpanderChild :: (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderChild :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderChild o
    obj = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ o -> String -> Maybe Widget -> IO ()
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> Maybe b -> IO ()
    B.Properties.setObjectPropertyObject o
    obj String
    "child" (Maybe Widget
    forall a. Maybe a
    Nothing :: Maybe Gtk.Widget.Widget)

    #if defined(ENABLE_OVERLOADING)
    data ExpanderChildPropertyInfo
    instance AttrInfo ExpanderChildPropertyInfo where
        type AttrAllowedOps ExpanderChildPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrClear]
        type AttrBaseTypeConstraint ExpanderChildPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderChildPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferTypeConstraint ExpanderChildPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferType ExpanderChildPropertyInfo = Gtk.Widget.Widget
        type AttrGetType ExpanderChildPropertyInfo = (Maybe Gtk.Widget.Widget)
        type AttrLabel ExpanderChildPropertyInfo = "child"
        type AttrOrigin ExpanderChildPropertyInfo = Expander
        attrGet = getExpanderChild
        attrSet = setExpanderChild
        attrPut = undefined
        attrTransfer _ v = do
            unsafeCastTo Gtk.Widget.Widget v
        attrConstruct = constructExpanderChild
        attrClear = clearExpanderChild
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.child"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:child"
            })
    #endif

    -- VVV Prop "expanded"
       -- Type: TBasicType TBoolean
       -- Flags: [PropertyReadable,PropertyWritable,PropertyConstruct]
       -- Nullable: (Just False,Just False)

    -- | Get the value of the “@expanded@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #expanded
    -- @
    getExpanderExpanded :: (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderExpanded :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderExpanded o
    obj = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Bool
    forall a. GObject a => a -> String -> IO Bool
    B.Properties.getObjectPropertyBool o
    obj String
    "expanded"

    -- | Set the value of the “@expanded@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #expanded 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderExpanded :: (MonadIO m, IsExpander o) => o -> Bool -> m ()
    setExpanderExpanded :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> Bool -> m ()
    setExpanderExpanded o
    obj Bool
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Bool -> IO ()
    forall a. GObject a => a -> String -> Bool -> IO ()
    B.Properties.setObjectPropertyBool o
    obj String
    "expanded" Bool
    val

    -- | Construct a t'GValueConstruct' with valid value for the “@expanded@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderExpanded :: (IsExpander o, MIO.MonadIO m) => Bool -> m (GValueConstruct o)
    constructExpanderExpanded :: forall o (m :: * -> *).
    (IsExpander o, MonadIO m) =>
    Bool -> m (GValueConstruct o)
    constructExpanderExpanded Bool
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Bool -> IO (GValueConstruct o)
    forall o. String -> Bool -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyBool String
    "expanded" Bool
    val

    #if defined(ENABLE_OVERLOADING)
    data ExpanderExpandedPropertyInfo
    instance AttrInfo ExpanderExpandedPropertyInfo where
        type AttrAllowedOps ExpanderExpandedPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrPut]
        type AttrBaseTypeConstraint ExpanderExpandedPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderExpandedPropertyInfo = (~) Bool
        type AttrTransferTypeConstraint ExpanderExpandedPropertyInfo = (~) Bool
        type AttrTransferType ExpanderExpandedPropertyInfo = Bool
        type AttrGetType ExpanderExpandedPropertyInfo = Bool
        type AttrLabel ExpanderExpandedPropertyInfo = "expanded"
        type AttrOrigin ExpanderExpandedPropertyInfo = Expander
        attrGet = getExpanderExpanded
        attrSet = setExpanderExpanded
        attrPut = setExpanderExpanded
        attrTransfer _ v = do
            return v
        attrConstruct = constructExpanderExpanded
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanded"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:expanded"
            })
    #endif

    -- VVV Prop "label"
       -- Type: TBasicType TUTF8
       -- Flags: [PropertyReadable,PropertyWritable,PropertyConstruct]
       -- Nullable: (Just True,Just True)

    -- | Get the value of the “@label@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #label
    -- @
    getExpanderLabel :: (MonadIO m, IsExpander o) => o -> m (Maybe T.Text)
    getExpanderLabel :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> m (Maybe Text)
    getExpanderLabel o
    obj = IO (Maybe Text) -> m (Maybe Text)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (Maybe Text) -> m (Maybe Text))
    -> IO (Maybe Text) -> m (Maybe Text)
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO (Maybe Text)
    forall a. GObject a => a -> String -> IO (Maybe Text)
    B.Properties.getObjectPropertyString o
    obj String
    "label"

    -- | Set the value of the “@label@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #label 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderLabel :: (MonadIO m, IsExpander o) => o -> T.Text -> m ()
    setExpanderLabel :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> Text -> m ()
    setExpanderLabel o
    obj Text
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Maybe Text -> IO ()
    forall a. GObject a => a -> String -> Maybe Text -> IO ()
    B.Properties.setObjectPropertyString o
    obj String
    "label" (Text -> Maybe Text
    forall a. a -> Maybe a
    Just Text
    val)

    -- | Construct a t'GValueConstruct' with valid value for the “@label@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderLabel :: (IsExpander o, MIO.MonadIO m) => T.Text -> m (GValueConstruct o)
    constructExpanderLabel :: forall o (m :: * -> *).
    (IsExpander o, MonadIO m) =>
    Text -> m (GValueConstruct o)
    constructExpanderLabel Text
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Maybe Text -> IO (GValueConstruct o)
    forall o. String -> Maybe Text -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyString String
    "label" (Text -> Maybe Text
    forall a. a -> Maybe a
    P.Just Text
    val)

    -- | Set the value of the “@label@” property to `Nothing`.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.clear' #label
    -- @
    clearExpanderLabel :: (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderLabel :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderLabel o
    obj = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ o -> String -> Maybe Text -> IO ()
    forall a. GObject a => a -> String -> Maybe Text -> IO ()
    B.Properties.setObjectPropertyString o
    obj String
    "label" (Maybe Text
    forall a. Maybe a
    Nothing :: Maybe T.Text)

    #if defined(ENABLE_OVERLOADING)
    data ExpanderLabelPropertyInfo
    instance AttrInfo ExpanderLabelPropertyInfo where
        type AttrAllowedOps ExpanderLabelPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrClear]
        type AttrBaseTypeConstraint ExpanderLabelPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderLabelPropertyInfo = (~) T.Text
        type AttrTransferTypeConstraint ExpanderLabelPropertyInfo = (~) T.Text
        type AttrTransferType ExpanderLabelPropertyInfo = T.Text
        type AttrGetType ExpanderLabelPropertyInfo = (Maybe T.Text)
        type AttrLabel ExpanderLabelPropertyInfo = "label"
        type AttrOrigin ExpanderLabelPropertyInfo = Expander
        attrGet = getExpanderLabel
        attrSet = setExpanderLabel
        attrPut = undefined
        attrTransfer _ v = do
            return v
        attrConstruct = constructExpanderLabel
        attrClear = clearExpanderLabel
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.label"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:label"
            })
    #endif

    -- VVV Prop "label-widget"
       -- Type: TInterface (Name {namespace = "Gtk", name = "Widget"})
       -- Flags: [PropertyReadable,PropertyWritable]
       -- Nullable: (Just True,Just True)

    -- | Get the value of the “@label-widget@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #labelWidget
    -- @
    getExpanderLabelWidget :: (MonadIO m, IsExpander o) => o -> m (Maybe Gtk.Widget.Widget)
    getExpanderLabelWidget :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> m (Maybe Widget)
    getExpanderLabelWidget o
    obj = IO (Maybe Widget) -> m (Maybe Widget)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (Maybe Widget) -> m (Maybe Widget))
    -> IO (Maybe Widget) -> m (Maybe Widget)
    forall a b. (a -> b) -> a -> b
    $ o -> String -> (ManagedPtr Widget -> Widget) -> IO (Maybe Widget)
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> (ManagedPtr b -> b) -> IO (Maybe b)
    B.Properties.getObjectPropertyObject o
    obj String
    "label-widget" ManagedPtr Widget -> Widget
    Gtk.Widget.Widget

    -- | Set the value of the “@label-widget@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #labelWidget 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderLabelWidget :: (MonadIO m, IsExpander o, Gtk.Widget.IsWidget a) => o -> a -> m ()
    setExpanderLabelWidget :: forall (m :: * -> *) o a.
    (MonadIO m, IsExpander o, IsWidget a) =>
    o -> a -> m ()
    setExpanderLabelWidget o
    obj a
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Maybe a -> IO ()
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> Maybe b -> IO ()
    B.Properties.setObjectPropertyObject o
    obj String
    "label-widget" (a -> Maybe a
    forall a. a -> Maybe a
    Just a
    val)

    -- | Construct a t'GValueConstruct' with valid value for the “@label-widget@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderLabelWidget :: (IsExpander o, MIO.MonadIO m, Gtk.Widget.IsWidget a) => a -> m (GValueConstruct o)
    constructExpanderLabelWidget :: forall o (m :: * -> *) a.
    (IsExpander o, MonadIO m, IsWidget a) =>
    a -> m (GValueConstruct o)
    constructExpanderLabelWidget a
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Maybe a -> IO (GValueConstruct o)
    forall a o.
    GObject a =>
    String -> Maybe a -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyObject String
    "label-widget" (a -> Maybe a
    forall a. a -> Maybe a
    P.Just a
    val)

    -- | Set the value of the “@label-widget@” property to `Nothing`.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.clear' #labelWidget
    -- @
    clearExpanderLabelWidget :: (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderLabelWidget :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m ()
    clearExpanderLabelWidget o
    obj = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ o -> String -> Maybe Widget -> IO ()
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> Maybe b -> IO ()
    B.Properties.setObjectPropertyObject o
    obj String
    "label-widget" (Maybe Widget
    forall a. Maybe a
    Nothing :: Maybe Gtk.Widget.Widget)

    #if defined(ENABLE_OVERLOADING)
    data ExpanderLabelWidgetPropertyInfo
    instance AttrInfo ExpanderLabelWidgetPropertyInfo where
        type AttrAllowedOps ExpanderLabelWidgetPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrClear]
        type AttrBaseTypeConstraint ExpanderLabelWidgetPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderLabelWidgetPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferTypeConstraint ExpanderLabelWidgetPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferType ExpanderLabelWidgetPropertyInfo = Gtk.Widget.Widget
        type AttrGetType ExpanderLabelWidgetPropertyInfo = (Maybe Gtk.Widget.Widget)
        type AttrLabel ExpanderLabelWidgetPropertyInfo = "label-widget"
        type AttrOrigin ExpanderLabelWidgetPropertyInfo = Expander
        attrGet = getExpanderLabelWidget
        attrSet = setExpanderLabelWidget
        attrPut = undefined
        attrTransfer _ v = do
            unsafeCastTo Gtk.Widget.Widget v
        attrConstruct = constructExpanderLabelWidget
        attrClear = clearExpanderLabelWidget
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.labelWidget"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:labelWidget"
            })
    #endif

    -- VVV Prop "resize-toplevel"
       -- Type: TBasicType TBoolean
       -- Flags: [PropertyReadable,PropertyWritable]
       -- Nullable: (Just False,Just False)

    -- | Get the value of the “@resize-toplevel@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #resizeToplevel
    -- @
    getExpanderResizeToplevel :: (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderResizeToplevel :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderResizeToplevel o
    obj = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Bool
    forall a. GObject a => a -> String -> IO Bool
    B.Properties.getObjectPropertyBool o
    obj String
    "resize-toplevel"

    -- | Set the value of the “@resize-toplevel@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #resizeToplevel 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderResizeToplevel :: (MonadIO m, IsExpander o) => o -> Bool -> m ()
    setExpanderResizeToplevel :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> Bool -> m ()
    setExpanderResizeToplevel o
    obj Bool
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Bool -> IO ()
    forall a. GObject a => a -> String -> Bool -> IO ()
    B.Properties.setObjectPropertyBool o
    obj String
    "resize-toplevel" Bool
    val

    -- | Construct a t'GValueConstruct' with valid value for the “@resize-toplevel@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderResizeToplevel :: (IsExpander o, MIO.MonadIO m) => Bool -> m (GValueConstruct o)
    constructExpanderResizeToplevel :: forall o (m :: * -> *).
    (IsExpander o, MonadIO m) =>
    Bool -> m (GValueConstruct o)
    constructExpanderResizeToplevel Bool
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Bool -> IO (GValueConstruct o)
    forall o. String -> Bool -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyBool String
    "resize-toplevel" Bool
    val

    #if defined(ENABLE_OVERLOADING)
    data ExpanderResizeToplevelPropertyInfo
    instance AttrInfo ExpanderResizeToplevelPropertyInfo where
        type AttrAllowedOps ExpanderResizeToplevelPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrPut]
        type AttrBaseTypeConstraint ExpanderResizeToplevelPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderResizeToplevelPropertyInfo = (~) Bool
        type AttrTransferTypeConstraint ExpanderResizeToplevelPropertyInfo = (~) Bool
        type AttrTransferType ExpanderResizeToplevelPropertyInfo = Bool
        type AttrGetType ExpanderResizeToplevelPropertyInfo = Bool
        type AttrLabel ExpanderResizeToplevelPropertyInfo = "resize-toplevel"
        type AttrOrigin ExpanderResizeToplevelPropertyInfo = Expander
        attrGet = getExpanderResizeToplevel
        attrSet = setExpanderResizeToplevel
        attrPut = setExpanderResizeToplevel
        attrTransfer _ v = do
            return v
        attrConstruct = constructExpanderResizeToplevel
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.resizeToplevel"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:resizeToplevel"
            })
    #endif

    -- VVV Prop "use-markup"
       -- Type: TBasicType TBoolean
       -- Flags: [PropertyReadable,PropertyWritable,PropertyConstruct]
       -- Nullable: (Just False,Just False)

    -- | Get the value of the “@use-markup@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #useMarkup
    -- @
    getExpanderUseMarkup :: (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderUseMarkup :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderUseMarkup o
    obj = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Bool
    forall a. GObject a => a -> String -> IO Bool
    B.Properties.getObjectPropertyBool o
    obj String
    "use-markup"

    -- | Set the value of the “@use-markup@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #useMarkup 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderUseMarkup :: (MonadIO m, IsExpander o) => o -> Bool -> m ()
    setExpanderUseMarkup :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> Bool -> m ()
    setExpanderUseMarkup o
    obj Bool
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Bool -> IO ()
    forall a. GObject a => a -> String -> Bool -> IO ()
    B.Properties.setObjectPropertyBool o
    obj String
    "use-markup" Bool
    val

    -- | Construct a t'GValueConstruct' with valid value for the “@use-markup@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderUseMarkup :: (IsExpander o, MIO.MonadIO m) => Bool -> m (GValueConstruct o)
    constructExpanderUseMarkup :: forall o (m :: * -> *).
    (IsExpander o, MonadIO m) =>
    Bool -> m (GValueConstruct o)
    constructExpanderUseMarkup Bool
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Bool -> IO (GValueConstruct o)
    forall o. String -> Bool -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyBool String
    "use-markup" Bool
    val

    #if defined(ENABLE_OVERLOADING)
    data ExpanderUseMarkupPropertyInfo
    instance AttrInfo ExpanderUseMarkupPropertyInfo where
        type AttrAllowedOps ExpanderUseMarkupPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrPut]
        type AttrBaseTypeConstraint ExpanderUseMarkupPropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderUseMarkupPropertyInfo = (~) Bool
        type AttrTransferTypeConstraint ExpanderUseMarkupPropertyInfo = (~) Bool
        type AttrTransferType ExpanderUseMarkupPropertyInfo = Bool
        type AttrGetType ExpanderUseMarkupPropertyInfo = Bool
        type AttrLabel ExpanderUseMarkupPropertyInfo = "use-markup"
        type AttrOrigin ExpanderUseMarkupPropertyInfo = Expander
        attrGet = getExpanderUseMarkup
        attrSet = setExpanderUseMarkup
        attrPut = setExpanderUseMarkup
        attrTransfer _ v = do
            return v
        attrConstruct = constructExpanderUseMarkup
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.useMarkup"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:useMarkup"
            })
    #endif

    -- VVV Prop "use-underline"
       -- Type: TBasicType TBoolean
       -- Flags: [PropertyReadable,PropertyWritable,PropertyConstruct]
       -- Nullable: (Just False,Just False)

    -- | Get the value of the “@use-underline@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' expander #useUnderline
    -- @
    getExpanderUseUnderline :: (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderUseUnderline :: forall (m :: * -> *) o. (MonadIO m, IsExpander o) => o -> m Bool
    getExpanderUseUnderline o
    obj = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Bool
    forall a. GObject a => a -> String -> IO Bool
    B.Properties.getObjectPropertyBool o
    obj String
    "use-underline"

    -- | Set the value of the “@use-underline@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' expander [ #useUnderline 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setExpanderUseUnderline :: (MonadIO m, IsExpander o) => o -> Bool -> m ()
    setExpanderUseUnderline :: forall (m :: * -> *) o.
    (MonadIO m, IsExpander o) =>
    o -> Bool -> m ()
    setExpanderUseUnderline o
    obj Bool
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Bool -> IO ()
    forall a. GObject a => a -> String -> Bool -> IO ()
    B.Properties.setObjectPropertyBool o
    obj String
    "use-underline" Bool
    val

    -- | Construct a t'GValueConstruct' with valid value for the “@use-underline@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructExpanderUseUnderline :: (IsExpander o, MIO.MonadIO m) => Bool -> m (GValueConstruct o)
    constructExpanderUseUnderline :: forall o (m :: * -> *).
    (IsExpander o, MonadIO m) =>
    Bool -> m (GValueConstruct o)
    constructExpanderUseUnderline Bool
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Bool -> IO (GValueConstruct o)
    forall o. String -> Bool -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyBool String
    "use-underline" Bool
    val

    #if defined(ENABLE_OVERLOADING)
    data ExpanderUseUnderlinePropertyInfo
    instance AttrInfo ExpanderUseUnderlinePropertyInfo where
        type AttrAllowedOps ExpanderUseUnderlinePropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrPut]
        type AttrBaseTypeConstraint ExpanderUseUnderlinePropertyInfo = IsExpander
        type AttrSetTypeConstraint ExpanderUseUnderlinePropertyInfo = (~) Bool
        type AttrTransferTypeConstraint ExpanderUseUnderlinePropertyInfo = (~) Bool
        type AttrTransferType ExpanderUseUnderlinePropertyInfo = Bool
        type AttrGetType ExpanderUseUnderlinePropertyInfo = Bool
        type AttrLabel ExpanderUseUnderlinePropertyInfo = "use-underline"
        type AttrOrigin ExpanderUseUnderlinePropertyInfo = Expander
        attrGet = getExpanderUseUnderline
        attrSet = setExpanderUseUnderline
        attrPut = setExpanderUseUnderline
        attrTransfer _ v = do
            return v
        attrConstruct = constructExpanderUseUnderline
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.useUnderline"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#g:attr:useUnderline"
            })
    #endif

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList Expander
    type instance O.AttributeList Expander = ExpanderAttributeList
    type ExpanderAttributeList = ('[ '("accessibleRole", Gtk.Accessible.AccessibleAccessibleRolePropertyInfo), '("canFocus", Gtk.Widget.WidgetCanFocusPropertyInfo), '("canTarget", Gtk.Widget.WidgetCanTargetPropertyInfo), '("child", ExpanderChildPropertyInfo), '("cssClasses", Gtk.Widget.WidgetCssClassesPropertyInfo), '("cssName", Gtk.Widget.WidgetCssNamePropertyInfo), '("cursor", Gtk.Widget.WidgetCursorPropertyInfo), '("expanded", ExpanderExpandedPropertyInfo), '("focusOnClick", Gtk.Widget.WidgetFocusOnClickPropertyInfo), '("focusable", Gtk.Widget.WidgetFocusablePropertyInfo), '("halign", Gtk.Widget.WidgetHalignPropertyInfo), '("hasDefault", Gtk.Widget.WidgetHasDefaultPropertyInfo), '("hasFocus", Gtk.Widget.WidgetHasFocusPropertyInfo), '("hasTooltip", Gtk.Widget.WidgetHasTooltipPropertyInfo), '("heightRequest", Gtk.Widget.WidgetHeightRequestPropertyInfo), '("hexpand", Gtk.Widget.WidgetHexpandPropertyInfo), '("hexpandSet", Gtk.Widget.WidgetHexpandSetPropertyInfo), '("label", ExpanderLabelPropertyInfo), '("labelWidget", ExpanderLabelWidgetPropertyInfo), '("layoutManager", Gtk.Widget.WidgetLayoutManagerPropertyInfo), '("limitEvents", Gtk.Widget.WidgetLimitEventsPropertyInfo), '("marginBottom", Gtk.Widget.WidgetMarginBottomPropertyInfo), '("marginEnd", Gtk.Widget.WidgetMarginEndPropertyInfo), '("marginStart", Gtk.Widget.WidgetMarginStartPropertyInfo), '("marginTop", Gtk.Widget.WidgetMarginTopPropertyInfo), '("name", Gtk.Widget.WidgetNamePropertyInfo), '("opacity", Gtk.Widget.WidgetOpacityPropertyInfo), '("overflow", Gtk.Widget.WidgetOverflowPropertyInfo), '("parent", Gtk.Widget.WidgetParentPropertyInfo), '("receivesDefault", Gtk.Widget.WidgetReceivesDefaultPropertyInfo), '("resizeToplevel", ExpanderResizeToplevelPropertyInfo), '("root", Gtk.Widget.WidgetRootPropertyInfo), '("scaleFactor", Gtk.Widget.WidgetScaleFactorPropertyInfo), '("sensitive", Gtk.Widget.WidgetSensitivePropertyInfo), '("tooltipMarkup", Gtk.Widget.WidgetTooltipMarkupPropertyInfo), '("tooltipText", Gtk.Widget.WidgetTooltipTextPropertyInfo), '("useMarkup", ExpanderUseMarkupPropertyInfo), '("useUnderline", ExpanderUseUnderlinePropertyInfo), '("valign", Gtk.Widget.WidgetValignPropertyInfo), '("vexpand", Gtk.Widget.WidgetVexpandPropertyInfo), '("vexpandSet", Gtk.Widget.WidgetVexpandSetPropertyInfo), '("visible", Gtk.Widget.WidgetVisiblePropertyInfo), '("widthRequest", Gtk.Widget.WidgetWidthRequestPropertyInfo)] :: [(Symbol, DK.Type)])
    #endif

    #if defined(ENABLE_OVERLOADING)
    expanderChild :: AttrLabelProxy "child"
    expanderChild = AttrLabelProxy

    expanderExpanded :: AttrLabelProxy "expanded"
    expanderExpanded = AttrLabelProxy

    expanderLabel :: AttrLabelProxy "label"
    expanderLabel = AttrLabelProxy

    expanderLabelWidget :: AttrLabelProxy "labelWidget"
    expanderLabelWidget = AttrLabelProxy

    expanderResizeToplevel :: AttrLabelProxy "resizeToplevel"
    expanderResizeToplevel = AttrLabelProxy

    expanderUseMarkup :: AttrLabelProxy "useMarkup"
    expanderUseMarkup = AttrLabelProxy

    expanderUseUnderline :: AttrLabelProxy "useUnderline"
    expanderUseUnderline = AttrLabelProxy

    #endif

    #if defined(ENABLE_OVERLOADING)
    type instance O.SignalList Expander = ExpanderSignalList
    type ExpanderSignalList = ('[ '("activate", ExpanderActivateSignalInfo), '("destroy", Gtk.Widget.WidgetDestroySignalInfo), '("directionChanged", Gtk.Widget.WidgetDirectionChangedSignalInfo), '("hide", Gtk.Widget.WidgetHideSignalInfo), '("keynavFailed", Gtk.Widget.WidgetKeynavFailedSignalInfo), '("map", Gtk.Widget.WidgetMapSignalInfo), '("mnemonicActivate", Gtk.Widget.WidgetMnemonicActivateSignalInfo), '("moveFocus", Gtk.Widget.WidgetMoveFocusSignalInfo), '("notify", GObject.Object.ObjectNotifySignalInfo), '("queryTooltip", Gtk.Widget.WidgetQueryTooltipSignalInfo), '("realize", Gtk.Widget.WidgetRealizeSignalInfo), '("show", Gtk.Widget.WidgetShowSignalInfo), '("stateFlagsChanged", Gtk.Widget.WidgetStateFlagsChangedSignalInfo), '("unmap", Gtk.Widget.WidgetUnmapSignalInfo), '("unrealize", Gtk.Widget.WidgetUnrealizeSignalInfo)] :: [(Symbol, DK.Type)])

    #endif

    -- method Expander::new
    -- method type : Constructor
    -- Args: [ Arg
    --           { argCName = "label"
    --           , argType = TBasicType TUTF8
    --           , argCType = Just "const char*"
    --           , direction = DirectionIn
    --           , mayBeNull = True
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "the text of the label"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gtk" , name = "Expander" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_new" gtk_expander_new ::
        CString ->                              -- label : TBasicType TUTF8
        IO (Ptr Expander)

    -- | Creates a new expander using /@label@/ as the text of the label.
    expanderNew ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        Maybe (T.Text)
        -- ^ /@label@/: the text of the label
        -> m Expander
        -- ^ __Returns:__ a new @GtkExpander@ widget.
    expanderNew :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    Maybe Text -> m Expander
    expanderNew Maybe Text
    label = IO Expander -> m Expander
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Expander -> m Expander) -> IO Expander -> m Expander
    forall a b. (a -> b) -> a -> b
    $ do
        maybeLabel <- case Maybe Text
    label of
            Maybe Text
    Nothing -> Ptr CChar -> IO (Ptr CChar)
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Ptr CChar
    forall a. Ptr a
    FP.nullPtr
            Just Text
    jLabel -> do
                jLabel' <- Text -> IO (Ptr CChar)
    textToCString Text
    jLabel
                return jLabel'
        result <- gtk_expander_new maybeLabel
        checkUnexpectedReturnNULL "expanderNew" result
        result' <- (newObject Expander) result
        freeMem maybeLabel
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method Expander::new_with_mnemonic
    -- method type : Constructor
    -- Args: [ Arg
    --           { argCName = "label"
    --           , argType = TBasicType TUTF8
    --           , argCType = Just "const char*"
    --           , direction = DirectionIn
    --           , mayBeNull = True
    --           , argDoc =
    --               Documentation
    --                 { rawDocText =
    --                     Just
    --                       "the text of the label with an underscore\n  in front of the mnemonic character"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gtk" , name = "Expander" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_new_with_mnemonic" gtk_expander_new_with_mnemonic ::
        CString ->                              -- label : TBasicType TUTF8
        IO (Ptr Expander)

    -- | Creates a new expander using /@label@/ as the text of the label.
    --
    -- If characters in /@label@/ are preceded by an underscore, they are
    -- underlined. If you need a literal underscore character in a label,
    -- use “__” (two underscores). The first underlined character represents
    -- a keyboard accelerator called a mnemonic.
    --
    -- Pressing Alt and that key activates the button.
    expanderNewWithMnemonic ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        Maybe (T.Text)
        -- ^ /@label@/: the text of the label with an underscore
        --   in front of the mnemonic character
        -> m Expander
        -- ^ __Returns:__ a new @GtkExpander@ widget.
    expanderNewWithMnemonic :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    Maybe Text -> m Expander
    expanderNewWithMnemonic Maybe Text
    label = IO Expander -> m Expander
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Expander -> m Expander) -> IO Expander -> m Expander
    forall a b. (a -> b) -> a -> b
    $ do
        maybeLabel <- case Maybe Text
    label of
            Maybe Text
    Nothing -> Ptr CChar -> IO (Ptr CChar)
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Ptr CChar
    forall a. Ptr a
    FP.nullPtr
            Just Text
    jLabel -> do
                jLabel' <- Text -> IO (Ptr CChar)
    textToCString Text
    jLabel
                return jLabel'
        result <- gtk_expander_new_with_mnemonic maybeLabel
        checkUnexpectedReturnNULL "expanderNewWithMnemonic" result
        result' <- (newObject Expander) result
        freeMem maybeLabel
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method Expander::get_child
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gtk" , name = "Widget" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_child" gtk_expander_get_child ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO (Ptr Gtk.Widget.Widget)

    -- | Gets the child widget of /@expander@/.
    expanderGetChild ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m (Maybe Gtk.Widget.Widget)
        -- ^ __Returns:__ the child widget of /@expander@/
    expanderGetChild :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m (Maybe Widget)
    expanderGetChild a
    expander = IO (Maybe Widget) -> m (Maybe Widget)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Widget) -> m (Maybe Widget))
    -> IO (Maybe Widget) -> m (Maybe Widget)
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_child expander'
        maybeResult <- convertIfNonNull result $ \Ptr Widget
    result' -> do
            result'' <- ((ManagedPtr Widget -> Widget) -> Ptr Widget -> IO Widget
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Widget -> Widget
    Gtk.Widget.Widget) Ptr Widget
    result'
            return result''
        touchManagedPtr expander
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetChildMethodInfo
    instance (signature ~ (m (Maybe Gtk.Widget.Widget)), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetChildMethodInfo a signature where
        overloadedMethod = expanderGetChild

    instance O.OverloadedMethodInfo ExpanderGetChildMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetChild",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetChild"
            })

    #endif

    -- method Expander::get_expanded
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TBoolean)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_expanded" gtk_expander_get_expanded ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO CInt

    -- | Queries a @GtkExpander@ and returns its current state.
    --
    -- Returns 'P.True' if the child widget is revealed.
    expanderGetExpanded ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m Bool
        -- ^ __Returns:__ the current state of the expander
    expanderGetExpanded :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m Bool
    expanderGetExpanded a
    expander = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_expanded expander'
        let result' = (CInt -> CInt -> Bool
    forall a. Eq a => a -> a -> Bool
    /= CInt
    0) CInt
    result
        touchManagedPtr expander
        return result'

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetExpandedMethodInfo
    instance (signature ~ (m Bool), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetExpandedMethodInfo a signature where
        overloadedMethod = expanderGetExpanded

    instance O.OverloadedMethodInfo ExpanderGetExpandedMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetExpanded",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetExpanded"
            })

    #endif

    -- method Expander::get_label
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TUTF8)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_label" gtk_expander_get_label ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO CString

    -- | Fetches the text from a label widget.
    --
    -- This is including any embedded underlines indicating mnemonics and
    -- Pango markup, as set by 'GI.Gtk.Objects.Expander.expanderSetLabel'. If the label
    -- text has not been set the return value will be 'P.Nothing'. This will be the
    -- case if you create an empty button with 'GI.Gtk.Objects.Button.buttonNew' to use as a
    -- container.
    expanderGetLabel ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m (Maybe T.Text)
        -- ^ __Returns:__ The text of the label widget. This string is owned
        --   by the widget and must not be modified or freed.
    expanderGetLabel :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m (Maybe Text)
    expanderGetLabel a
    expander = IO (Maybe Text) -> m (Maybe Text)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Text) -> m (Maybe Text))
    -> IO (Maybe Text) -> m (Maybe Text)
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_label expander'
        maybeResult <- convertIfNonNull result $ \Ptr CChar
    result' -> do
            result'' <- HasCallStack => Ptr CChar -> IO Text
    Ptr CChar -> IO Text
    cstringToText Ptr CChar
    result'
            return result''
        touchManagedPtr expander
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetLabelMethodInfo
    instance (signature ~ (m (Maybe T.Text)), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetLabelMethodInfo a signature where
        overloadedMethod = expanderGetLabel

    instance O.OverloadedMethodInfo ExpanderGetLabelMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetLabel",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetLabel"
            })

    #endif

    -- method Expander::get_label_widget
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gtk" , name = "Widget" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_label_widget" gtk_expander_get_label_widget ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO (Ptr Gtk.Widget.Widget)

    -- | Retrieves the label widget for the frame.
    expanderGetLabelWidget ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m (Maybe Gtk.Widget.Widget)
        -- ^ __Returns:__ the label widget
    expanderGetLabelWidget :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m (Maybe Widget)
    expanderGetLabelWidget a
    expander = IO (Maybe Widget) -> m (Maybe Widget)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Widget) -> m (Maybe Widget))
    -> IO (Maybe Widget) -> m (Maybe Widget)
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_label_widget expander'
        maybeResult <- convertIfNonNull result $ \Ptr Widget
    result' -> do
            result'' <- ((ManagedPtr Widget -> Widget) -> Ptr Widget -> IO Widget
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Widget -> Widget
    Gtk.Widget.Widget) Ptr Widget
    result'
            return result''
        touchManagedPtr expander
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetLabelWidgetMethodInfo
    instance (signature ~ (m (Maybe Gtk.Widget.Widget)), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetLabelWidgetMethodInfo a signature where
        overloadedMethod = expanderGetLabelWidget

    instance O.OverloadedMethodInfo ExpanderGetLabelWidgetMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetLabelWidget",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetLabelWidget"
            })

    #endif

    -- method Expander::get_resize_toplevel
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TBoolean)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_resize_toplevel" gtk_expander_get_resize_toplevel ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO CInt

    -- | Returns whether the expander will resize the toplevel widget
    -- containing the expander upon resizing and collapsing.
    expanderGetResizeToplevel ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m Bool
        -- ^ __Returns:__ the “resize toplevel” setting.
    expanderGetResizeToplevel :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m Bool
    expanderGetResizeToplevel a
    expander = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_resize_toplevel expander'
        let result' = (CInt -> CInt -> Bool
    forall a. Eq a => a -> a -> Bool
    /= CInt
    0) CInt
    result
        touchManagedPtr expander
        return result'

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetResizeToplevelMethodInfo
    instance (signature ~ (m Bool), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetResizeToplevelMethodInfo a signature where
        overloadedMethod = expanderGetResizeToplevel

    instance O.OverloadedMethodInfo ExpanderGetResizeToplevelMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetResizeToplevel",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetResizeToplevel"
            })

    #endif

    -- method Expander::get_use_markup
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TBoolean)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_use_markup" gtk_expander_get_use_markup ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO CInt

    -- | Returns whether the label’s text is interpreted as Pango markup.
    expanderGetUseMarkup ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m Bool
        -- ^ __Returns:__ 'P.True' if the label’s text will be parsed for markup
    expanderGetUseMarkup :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m Bool
    expanderGetUseMarkup a
    expander = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_use_markup expander'
        let result' = (CInt -> CInt -> Bool
    forall a. Eq a => a -> a -> Bool
    /= CInt
    0) CInt
    result
        touchManagedPtr expander
        return result'

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetUseMarkupMethodInfo
    instance (signature ~ (m Bool), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetUseMarkupMethodInfo a signature where
        overloadedMethod = expanderGetUseMarkup

    instance O.OverloadedMethodInfo ExpanderGetUseMarkupMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetUseMarkup",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetUseMarkup"
            })

    #endif

    -- method Expander::get_use_underline
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TBoolean)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_get_use_underline" gtk_expander_get_use_underline ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        IO CInt

    -- | Returns whether an underline in the text indicates a mnemonic.
    expanderGetUseUnderline ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> m Bool
        -- ^ __Returns:__ 'P.True' if an embedded underline in the expander
        --   label indicates the mnemonic accelerator keys
    expanderGetUseUnderline :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> m Bool
    expanderGetUseUnderline a
    expander = IO Bool -> m Bool
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Bool -> m Bool) -> IO Bool -> m Bool
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        result <- gtk_expander_get_use_underline expander'
        let result' = (CInt -> CInt -> Bool
    forall a. Eq a => a -> a -> Bool
    /= CInt
    0) CInt
    result
        touchManagedPtr expander
        return result'

    #if defined(ENABLE_OVERLOADING)
    data ExpanderGetUseUnderlineMethodInfo
    instance (signature ~ (m Bool), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderGetUseUnderlineMethodInfo a signature where
        overloadedMethod = expanderGetUseUnderline

    instance O.OverloadedMethodInfo ExpanderGetUseUnderlineMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderGetUseUnderline",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderGetUseUnderline"
            })

    #endif

    -- method Expander::set_child
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "child"
    --           , argType = TInterface Name { namespace = "Gtk" , name = "Widget" }
    --           , argCType = Just "GtkWidget*"
    --           , direction = DirectionIn
    --           , mayBeNull = True
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "the child widget" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_child" gtk_expander_set_child ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        Ptr Gtk.Widget.Widget ->                -- child : TInterface (Name {namespace = "Gtk", name = "Widget"})
        IO ()

    -- | Sets the child widget of /@expander@/.
    expanderSetChild ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a, Gtk.Widget.IsWidget b) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Maybe (b)
        -- ^ /@child@/: the child widget
        -> m ()
    expanderSetChild :: forall (m :: * -> *) a b.
    (HasCallStack, MonadIO m, IsExpander a, IsWidget b) =>
    a -> Maybe b -> m ()
    expanderSetChild a
    expander Maybe b
    child = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        maybeChild <- case child of
            Maybe b
    Nothing -> Ptr Widget -> IO (Ptr Widget)
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Ptr Widget
    forall a. Ptr a
    FP.nullPtr
            Just b
    jChild -> do
                jChild' <- b -> IO (Ptr Widget)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr b
    jChild
                return jChild'
        gtk_expander_set_child expander' maybeChild
        touchManagedPtr expander
        whenJust child touchManagedPtr
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetChildMethodInfo
    instance (signature ~ (Maybe (b) -> m ()), MonadIO m, IsExpander a, Gtk.Widget.IsWidget b) => O.OverloadedMethod ExpanderSetChildMethodInfo a signature where
        overloadedMethod = expanderSetChild

    instance O.OverloadedMethodInfo ExpanderSetChildMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetChild",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetChild"
            })

    #endif

    -- method Expander::set_expanded
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "expanded"
    --           , argType = TBasicType TBoolean
    --           , argCType = Just "gboolean"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "whether the child widget is revealed"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_expanded" gtk_expander_set_expanded ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        CInt ->                                 -- expanded : TBasicType TBoolean
        IO ()

    -- | Sets the state of the expander.
    --
    -- Set to 'P.True', if you want the child widget to be revealed,
    -- and 'P.False' if you want the child widget to be hidden.
    expanderSetExpanded ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Bool
        -- ^ /@expanded@/: whether the child widget is revealed
        -> m ()
    expanderSetExpanded :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> Bool -> m ()
    expanderSetExpanded a
    expander Bool
    expanded = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        let expanded' = (Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    P.fromIntegral (Int -> CInt) -> (Bool -> Int) -> Bool -> CInt
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Bool -> Int
    forall a. Enum a => a -> Int
    P.fromEnum) Bool
    expanded
        gtk_expander_set_expanded expander' expanded'
        touchManagedPtr expander
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetExpandedMethodInfo
    instance (signature ~ (Bool -> m ()), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderSetExpandedMethodInfo a signature where
        overloadedMethod = expanderSetExpanded

    instance O.OverloadedMethodInfo ExpanderSetExpandedMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetExpanded",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetExpanded"
            })

    #endif

    -- method Expander::set_label
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "label"
    --           , argType = TBasicType TUTF8
    --           , argCType = Just "const char*"
    --           , direction = DirectionIn
    --           , mayBeNull = True
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a string" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_label" gtk_expander_set_label ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        CString ->                              -- label : TBasicType TUTF8
        IO ()

    -- | Sets the text of the label of the expander to /@label@/.
    --
    -- This will also clear any previously set labels.
    expanderSetLabel ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Maybe (T.Text)
        -- ^ /@label@/: a string
        -> m ()
    expanderSetLabel :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> Maybe Text -> m ()
    expanderSetLabel a
    expander Maybe Text
    label = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        maybeLabel <- case label of
            Maybe Text
    Nothing -> Ptr CChar -> IO (Ptr CChar)
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Ptr CChar
    forall a. Ptr a
    FP.nullPtr
            Just Text
    jLabel -> do
                jLabel' <- Text -> IO (Ptr CChar)
    textToCString Text
    jLabel
                return jLabel'
        gtk_expander_set_label expander' maybeLabel
        touchManagedPtr expander
        freeMem maybeLabel
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetLabelMethodInfo
    instance (signature ~ (Maybe (T.Text) -> m ()), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderSetLabelMethodInfo a signature where
        overloadedMethod = expanderSetLabel

    instance O.OverloadedMethodInfo ExpanderSetLabelMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetLabel",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetLabel"
            })

    #endif

    -- method Expander::set_label_widget
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "label_widget"
    --           , argType = TInterface Name { namespace = "Gtk" , name = "Widget" }
    --           , argCType = Just "GtkWidget*"
    --           , direction = DirectionIn
    --           , mayBeNull = True
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "the new label widget"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_label_widget" gtk_expander_set_label_widget ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        Ptr Gtk.Widget.Widget ->                -- label_widget : TInterface (Name {namespace = "Gtk", name = "Widget"})
        IO ()

    -- | Set the label widget for the expander.
    --
    -- This is the widget that will appear embedded alongside
    -- the expander arrow.
    expanderSetLabelWidget ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a, Gtk.Widget.IsWidget b) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Maybe (b)
        -- ^ /@labelWidget@/: the new label widget
        -> m ()
    expanderSetLabelWidget :: forall (m :: * -> *) a b.
    (HasCallStack, MonadIO m, IsExpander a, IsWidget b) =>
    a -> Maybe b -> m ()
    expanderSetLabelWidget a
    expander Maybe b
    labelWidget = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        maybeLabelWidget <- case labelWidget of
            Maybe b
    Nothing -> Ptr Widget -> IO (Ptr Widget)
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Ptr Widget
    forall a. Ptr a
    FP.nullPtr
            Just b
    jLabelWidget -> do
                jLabelWidget' <- b -> IO (Ptr Widget)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr b
    jLabelWidget
                return jLabelWidget'
        gtk_expander_set_label_widget expander' maybeLabelWidget
        touchManagedPtr expander
        whenJust labelWidget touchManagedPtr
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetLabelWidgetMethodInfo
    instance (signature ~ (Maybe (b) -> m ()), MonadIO m, IsExpander a, Gtk.Widget.IsWidget b) => O.OverloadedMethod ExpanderSetLabelWidgetMethodInfo a signature where
        overloadedMethod = expanderSetLabelWidget

    instance O.OverloadedMethodInfo ExpanderSetLabelWidgetMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetLabelWidget",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetLabelWidget"
            })

    #endif

    -- method Expander::set_resize_toplevel
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "resize_toplevel"
    --           , argType = TBasicType TBoolean
    --           , argCType = Just "gboolean"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "whether to resize the toplevel"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_resize_toplevel" gtk_expander_set_resize_toplevel ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        CInt ->                                 -- resize_toplevel : TBasicType TBoolean
        IO ()

    -- | Sets whether the expander will resize the toplevel widget
    -- containing the expander upon resizing and collapsing.
    expanderSetResizeToplevel ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Bool
        -- ^ /@resizeToplevel@/: whether to resize the toplevel
        -> m ()
    expanderSetResizeToplevel :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> Bool -> m ()
    expanderSetResizeToplevel a
    expander Bool
    resizeToplevel = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        let resizeToplevel' = (Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    P.fromIntegral (Int -> CInt) -> (Bool -> Int) -> Bool -> CInt
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Bool -> Int
    forall a. Enum a => a -> Int
    P.fromEnum) Bool
    resizeToplevel
        gtk_expander_set_resize_toplevel expander' resizeToplevel'
        touchManagedPtr expander
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetResizeToplevelMethodInfo
    instance (signature ~ (Bool -> m ()), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderSetResizeToplevelMethodInfo a signature where
        overloadedMethod = expanderSetResizeToplevel

    instance O.OverloadedMethodInfo ExpanderSetResizeToplevelMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetResizeToplevel",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetResizeToplevel"
            })

    #endif

    -- method Expander::set_use_markup
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "use_markup"
    --           , argType = TBasicType TBoolean
    --           , argCType = Just "gboolean"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText =
    --                     Just "%TRUE if the label\8217s text should be parsed for markup"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_use_markup" gtk_expander_set_use_markup ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        CInt ->                                 -- use_markup : TBasicType TBoolean
        IO ()

    -- | Sets whether the text of the label contains Pango markup.
    expanderSetUseMarkup ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Bool
        -- ^ /@useMarkup@/: 'P.True' if the label’s text should be parsed for markup
        -> m ()
    expanderSetUseMarkup :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> Bool -> m ()
    expanderSetUseMarkup a
    expander Bool
    useMarkup = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        let useMarkup' = (Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    P.fromIntegral (Int -> CInt) -> (Bool -> Int) -> Bool -> CInt
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Bool -> Int
    forall a. Enum a => a -> Int
    P.fromEnum) Bool
    useMarkup
        gtk_expander_set_use_markup expander' useMarkup'
        touchManagedPtr expander
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetUseMarkupMethodInfo
    instance (signature ~ (Bool -> m ()), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderSetUseMarkupMethodInfo a signature where
        overloadedMethod = expanderSetUseMarkup

    instance O.OverloadedMethodInfo ExpanderSetUseMarkupMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetUseMarkup",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetUseMarkup"
            })

    #endif

    -- method Expander::set_use_underline
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "expander"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "Expander" }
    --           , argCType = Just "GtkExpander*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkExpander`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "use_underline"
    --           , argType = TBasicType TBoolean
    --           , argCType = Just "gboolean"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText =
    --                     Just "%TRUE if underlines in the text indicate mnemonics"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_expander_set_use_underline" gtk_expander_set_use_underline ::
        Ptr Expander ->                         -- expander : TInterface (Name {namespace = "Gtk", name = "Expander"})
        CInt ->                                 -- use_underline : TBasicType TBoolean
        IO ()

    -- | If true, an underline in the text indicates a mnemonic.
    expanderSetUseUnderline ::
        (B.CallStack.HasCallStack, MonadIO m, IsExpander a) =>
        a
        -- ^ /@expander@/: a @GtkExpander@
        -> Bool
        -- ^ /@useUnderline@/: 'P.True' if underlines in the text indicate mnemonics
        -> m ()
    expanderSetUseUnderline :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsExpander a) =>
    a -> Bool -> m ()
    expanderSetUseUnderline a
    expander Bool
    useUnderline = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        expander' <- a -> IO (Ptr Expander)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    expander
        let useUnderline' = (Int -> CInt
    forall a b. (Integral a, Num b) => a -> b
    P.fromIntegral (Int -> CInt) -> (Bool -> Int) -> Bool -> CInt
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Bool -> Int
    forall a. Enum a => a -> Int
    P.fromEnum) Bool
    useUnderline
        gtk_expander_set_use_underline expander' useUnderline'
        touchManagedPtr expander
        return ()

    #if defined(ENABLE_OVERLOADING)
    data ExpanderSetUseUnderlineMethodInfo
    instance (signature ~ (Bool -> m ()), MonadIO m, IsExpander a) => O.OverloadedMethod ExpanderSetUseUnderlineMethodInfo a signature where
        overloadedMethod = expanderSetUseUnderline

    instance O.OverloadedMethodInfo ExpanderSetUseUnderlineMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.Expander.expanderSetUseUnderline",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-Expander.html#v:expanderSetUseUnderline"
            })

    #endif