    {-# LANGUAGE TypeApplications #-}

    -- | Copyright  : Will Thompson and Iñaki García Etxebarria
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- Used by list widgets to represent the headers they display.
    --
    -- @GtkListHeader@ objects are managed just like t'GI.Gtk.Objects.ListItem.ListItem'
    -- objects via their factory, but provide a different set of properties suitable
    -- for managing the header instead of individual items.
    --
    -- /Since: 4.12/

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

    module GI.Gtk.Objects.ListHeader
        (

    -- * Exported types
        ListHeader(..)                          ,
        IsListHeader                            ,
        toListHeader                            ,

     -- * Methods
    -- |
    --
    --  === __Click to display all available methods, including inherited ones__
    -- ==== Methods
    -- [bindProperty]("GI.GObject.Objects.Object#g:method:bindProperty"), [bindPropertyFull]("GI.GObject.Objects.Object#g:method:bindPropertyFull"), [forceFloating]("GI.GObject.Objects.Object#g:method:forceFloating"), [freezeNotify]("GI.GObject.Objects.Object#g:method:freezeNotify"), [getv]("GI.GObject.Objects.Object#g:method:getv"), [isFloating]("GI.GObject.Objects.Object#g:method:isFloating"), [notify]("GI.GObject.Objects.Object#g:method:notify"), [notifyByPspec]("GI.GObject.Objects.Object#g:method:notifyByPspec"), [ref]("GI.GObject.Objects.Object#g:method:ref"), [refSink]("GI.GObject.Objects.Object#g:method:refSink"), [runDispose]("GI.GObject.Objects.Object#g:method:runDispose"), [stealData]("GI.GObject.Objects.Object#g:method:stealData"), [stealQdata]("GI.GObject.Objects.Object#g:method:stealQdata"), [thawNotify]("GI.GObject.Objects.Object#g:method:thawNotify"), [unref]("GI.GObject.Objects.Object#g:method:unref"), [watchClosure]("GI.GObject.Objects.Object#g:method:watchClosure").
    --
    -- ==== Getters
    -- [getChild]("GI.Gtk.Objects.ListHeader#g:method:getChild"), [getData]("GI.GObject.Objects.Object#g:method:getData"), [getEnd]("GI.Gtk.Objects.ListHeader#g:method:getEnd"), [getItem]("GI.Gtk.Objects.ListHeader#g:method:getItem"), [getNItems]("GI.Gtk.Objects.ListHeader#g:method:getNItems"), [getProperty]("GI.GObject.Objects.Object#g:method:getProperty"), [getQdata]("GI.GObject.Objects.Object#g:method:getQdata"), [getStart]("GI.Gtk.Objects.ListHeader#g:method:getStart").
    --
    -- ==== Setters
    -- [setChild]("GI.Gtk.Objects.ListHeader#g:method:setChild"), [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [setProperty]("GI.GObject.Objects.Object#g:method:setProperty").

    #if defined(ENABLE_OVERLOADING)
        ResolveListHeaderMethod                 ,
    #endif

    -- ** getChild #method:getChild#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderGetChildMethodInfo            ,
    #endif
        listHeaderGetChild                      ,

    -- ** getEnd #method:getEnd#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderGetEndMethodInfo              ,
    #endif
        listHeaderGetEnd                        ,

    -- ** getItem #method:getItem#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderGetItemMethodInfo             ,
    #endif
        listHeaderGetItem                       ,

    -- ** getNItems #method:getNItems#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderGetNItemsMethodInfo           ,
    #endif
        listHeaderGetNItems                     ,

    -- ** getStart #method:getStart#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderGetStartMethodInfo            ,
    #endif
        listHeaderGetStart                      ,

    -- ** setChild #method:setChild#

    #if defined(ENABLE_OVERLOADING)
        ListHeaderSetChildMethodInfo            ,
    #endif
        listHeaderSetChild                      ,

     -- * Properties

    -- ** child #attr:child#
    -- | Widget used for display.
    --
    -- /Since: 4.12/

    #if defined(ENABLE_OVERLOADING)
        ListHeaderChildPropertyInfo             ,
    #endif
        clearListHeaderChild                    ,
        constructListHeaderChild                ,
        getListHeaderChild                      ,
    #if defined(ENABLE_OVERLOADING)
        listHeaderChild                         ,
    #endif
        setListHeaderChild                      ,

    -- ** end #attr:end#
    -- | The first position no longer part of this section.
    --
    -- /Since: 4.12/

    #if defined(ENABLE_OVERLOADING)
        ListHeaderEndPropertyInfo               ,
    #endif
        getListHeaderEnd                        ,
    #if defined(ENABLE_OVERLOADING)
        listHeaderEnd                           ,
    #endif

    -- ** item #attr:item#
    -- | The item at the start of the section.
    --
    -- /Since: 4.12/

    #if defined(ENABLE_OVERLOADING)
        ListHeaderItemPropertyInfo              ,
    #endif
        getListHeaderItem                       ,
    #if defined(ENABLE_OVERLOADING)
        listHeaderItem                          ,
    #endif

    -- ** nItems #attr:nItems#
    -- | Number of items in this section.
    --
    -- /Since: 4.12/

    #if defined(ENABLE_OVERLOADING)
        ListHeaderNItemsPropertyInfo            ,
    #endif
        getListHeaderNItems                     ,
    #if defined(ENABLE_OVERLOADING)
        listHeaderNItems                        ,
    #endif

    -- ** start #attr:start#
    -- | First position of items in this section.
    --
    -- /Since: 4.12/

    #if defined(ENABLE_OVERLOADING)
        ListHeaderStartPropertyInfo             ,
    #endif
        getListHeaderStart                      ,
    #if defined(ENABLE_OVERLOADING)
        listHeaderStart                         ,
    #endif

        ) 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.Objects.Widget as Gtk.Widget

    #endif

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

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

    foreign import ccall "gtk_list_header_get_type"
        c_gtk_list_header_get_type :: IO B.Types.GType

    instance B.Types.TypedObject ListHeader where
        glibType :: IO GType
    glibType = IO GType
    c_gtk_list_header_get_type

    instance B.Types.GObject ListHeader

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

    instance O.HasParentTypes ListHeader
    type instance O.ParentTypes ListHeader = '[GObject.Object.Object]

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

    -- | Convert t'ListHeader' 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 ListHeader) where
        gvalueGType_ :: IO GType
    gvalueGType_ = IO GType
    c_gtk_list_header_get_type
        gvalueSet_ :: Ptr GValue -> Maybe ListHeader -> IO ()
    gvalueSet_ Ptr GValue
    gv Maybe ListHeader
    P.Nothing = Ptr GValue -> Ptr ListHeader -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv (Ptr ListHeader
    forall a. Ptr a
    FP.nullPtr :: FP.Ptr ListHeader)
        gvalueSet_ Ptr GValue
    gv (P.Just ListHeader
    obj) = ListHeader -> (Ptr ListHeader -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr ListHeader
    obj (Ptr GValue -> Ptr ListHeader -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv)
        gvalueGet_ :: Ptr GValue -> IO (Maybe ListHeader)
    gvalueGet_ Ptr GValue
    gv = do
            ptr <- Ptr GValue -> IO (Ptr ListHeader)
    forall a. GObject a => Ptr GValue -> IO (Ptr a)
    B.GValue.get_object Ptr GValue
    gv :: IO (FP.Ptr ListHeader)
            if ptr /= FP.nullPtr
            then P.Just <$> B.ManagedPtr.newObject ListHeader ptr
            else return P.Nothing

    #if defined(ENABLE_OVERLOADING)
    type family ResolveListHeaderMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where
        ResolveListHeaderMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo
        ResolveListHeaderMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo
        ResolveListHeaderMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo
        ResolveListHeaderMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo
        ResolveListHeaderMethod "getv" o = GObject.Object.ObjectGetvMethodInfo
        ResolveListHeaderMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo
        ResolveListHeaderMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo
        ResolveListHeaderMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo
        ResolveListHeaderMethod "ref" o = GObject.Object.ObjectRefMethodInfo
        ResolveListHeaderMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo
        ResolveListHeaderMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo
        ResolveListHeaderMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo
        ResolveListHeaderMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo
        ResolveListHeaderMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo
        ResolveListHeaderMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo
        ResolveListHeaderMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo
        ResolveListHeaderMethod "getChild" o = ListHeaderGetChildMethodInfo
        ResolveListHeaderMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo
        ResolveListHeaderMethod "getEnd" o = ListHeaderGetEndMethodInfo
        ResolveListHeaderMethod "getItem" o = ListHeaderGetItemMethodInfo
        ResolveListHeaderMethod "getNItems" o = ListHeaderGetNItemsMethodInfo
        ResolveListHeaderMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo
        ResolveListHeaderMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo
        ResolveListHeaderMethod "getStart" o = ListHeaderGetStartMethodInfo
        ResolveListHeaderMethod "setChild" o = ListHeaderSetChildMethodInfo
        ResolveListHeaderMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
        ResolveListHeaderMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo
        ResolveListHeaderMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo
        ResolveListHeaderMethod l o = O.MethodResolutionFailed l o

    instance (info ~ ResolveListHeaderMethod t ListHeader, O.OverloadedMethod info ListHeader p) => OL.IsLabel t (ListHeader -> 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 ~ ResolveListHeaderMethod t ListHeader, O.OverloadedMethod info ListHeader p, R.HasField t ListHeader p) => R.HasField t ListHeader p where
        getField = O.overloadedMethod @info

    #endif

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

    #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' listHeader #child
    -- @
    getListHeaderChild :: (MonadIO m, IsListHeader o) => o -> m (Maybe Gtk.Widget.Widget)
    getListHeaderChild :: forall (m :: * -> *) o.
    (MonadIO m, IsListHeader o) =>
    o -> m (Maybe Widget)
    getListHeaderChild 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' listHeader [ #child 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setListHeaderChild :: (MonadIO m, IsListHeader o, Gtk.Widget.IsWidget a) => o -> a -> m ()
    setListHeaderChild :: forall (m :: * -> *) o a.
    (MonadIO m, IsListHeader o, IsWidget a) =>
    o -> a -> m ()
    setListHeaderChild 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`.
    constructListHeaderChild :: (IsListHeader o, MIO.MonadIO m, Gtk.Widget.IsWidget a) => a -> m (GValueConstruct o)
    constructListHeaderChild :: forall o (m :: * -> *) a.
    (IsListHeader o, MonadIO m, IsWidget a) =>
    a -> m (GValueConstruct o)
    constructListHeaderChild 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
    -- @
    clearListHeaderChild :: (MonadIO m, IsListHeader o) => o -> m ()
    clearListHeaderChild :: forall (m :: * -> *) o. (MonadIO m, IsListHeader o) => o -> m ()
    clearListHeaderChild 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 ListHeaderChildPropertyInfo
    instance AttrInfo ListHeaderChildPropertyInfo where
        type AttrAllowedOps ListHeaderChildPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet, 'AttrClear]
        type AttrBaseTypeConstraint ListHeaderChildPropertyInfo = IsListHeader
        type AttrSetTypeConstraint ListHeaderChildPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferTypeConstraint ListHeaderChildPropertyInfo = Gtk.Widget.IsWidget
        type AttrTransferType ListHeaderChildPropertyInfo = Gtk.Widget.Widget
        type AttrGetType ListHeaderChildPropertyInfo = (Maybe Gtk.Widget.Widget)
        type AttrLabel ListHeaderChildPropertyInfo = "child"
        type AttrOrigin ListHeaderChildPropertyInfo = ListHeader
        attrGet = getListHeaderChild
        attrSet = setListHeaderChild
        attrPut = undefined
        attrTransfer _ v = do
            unsafeCastTo Gtk.Widget.Widget v
        attrConstruct = constructListHeaderChild
        attrClear = clearListHeaderChild
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.ListHeader.child"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-ListHeader.html#g:attr:child"
            })
    #endif

    -- VVV Prop "end"
       -- Type: TBasicType TUInt
       -- Flags: [PropertyReadable]
       -- Nullable: (Just False,Nothing)

    -- | Get the value of the “@end@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' listHeader #end
    -- @
    getListHeaderEnd :: (MonadIO m, IsListHeader o) => o -> m Word32
    getListHeaderEnd :: forall (m :: * -> *) o.
    (MonadIO m, IsListHeader o) =>
    o -> m Word32
    getListHeaderEnd o
    obj = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Word32
    forall a. GObject a => a -> String -> IO Word32
    B.Properties.getObjectPropertyUInt32 o
    obj String
    "end"

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderEndPropertyInfo
    instance AttrInfo ListHeaderEndPropertyInfo where
        type AttrAllowedOps ListHeaderEndPropertyInfo = '[ 'AttrGet]
        type AttrBaseTypeConstraint ListHeaderEndPropertyInfo = IsListHeader
        type AttrSetTypeConstraint ListHeaderEndPropertyInfo = (~) ()
        type AttrTransferTypeConstraint ListHeaderEndPropertyInfo = (~) ()
        type AttrTransferType ListHeaderEndPropertyInfo = ()
        type AttrGetType ListHeaderEndPropertyInfo = Word32
        type AttrLabel ListHeaderEndPropertyInfo = "end"
        type AttrOrigin ListHeaderEndPropertyInfo = ListHeader
        attrGet = getListHeaderEnd
        attrSet = undefined
        attrPut = undefined
        attrTransfer _ = undefined
        attrConstruct = undefined
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.ListHeader.end"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-ListHeader.html#g:attr:end"
            })
    #endif

    -- VVV Prop "item"
       -- Type: TInterface (Name {namespace = "GObject", name = "Object"})
       -- Flags: [PropertyReadable]
       -- Nullable: (Just True,Nothing)

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

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderItemPropertyInfo
    instance AttrInfo ListHeaderItemPropertyInfo where
        type AttrAllowedOps ListHeaderItemPropertyInfo = '[ 'AttrGet, 'AttrClear]
        type AttrBaseTypeConstraint ListHeaderItemPropertyInfo = IsListHeader
        type AttrSetTypeConstraint ListHeaderItemPropertyInfo = (~) ()
        type AttrTransferTypeConstraint ListHeaderItemPropertyInfo = (~) ()
        type AttrTransferType ListHeaderItemPropertyInfo = ()
        type AttrGetType ListHeaderItemPropertyInfo = (Maybe GObject.Object.Object)
        type AttrLabel ListHeaderItemPropertyInfo = "item"
        type AttrOrigin ListHeaderItemPropertyInfo = ListHeader
        attrGet = getListHeaderItem
        attrSet = undefined
        attrPut = undefined
        attrTransfer _ = undefined
        attrConstruct = undefined
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.ListHeader.item"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-ListHeader.html#g:attr:item"
            })
    #endif

    -- VVV Prop "n-items"
       -- Type: TBasicType TUInt
       -- Flags: [PropertyReadable]
       -- Nullable: (Just False,Nothing)

    -- | Get the value of the “@n-items@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' listHeader #nItems
    -- @
    getListHeaderNItems :: (MonadIO m, IsListHeader o) => o -> m Word32
    getListHeaderNItems :: forall (m :: * -> *) o.
    (MonadIO m, IsListHeader o) =>
    o -> m Word32
    getListHeaderNItems o
    obj = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Word32
    forall a. GObject a => a -> String -> IO Word32
    B.Properties.getObjectPropertyUInt32 o
    obj String
    "n-items"

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderNItemsPropertyInfo
    instance AttrInfo ListHeaderNItemsPropertyInfo where
        type AttrAllowedOps ListHeaderNItemsPropertyInfo = '[ 'AttrGet]
        type AttrBaseTypeConstraint ListHeaderNItemsPropertyInfo = IsListHeader
        type AttrSetTypeConstraint ListHeaderNItemsPropertyInfo = (~) ()
        type AttrTransferTypeConstraint ListHeaderNItemsPropertyInfo = (~) ()
        type AttrTransferType ListHeaderNItemsPropertyInfo = ()
        type AttrGetType ListHeaderNItemsPropertyInfo = Word32
        type AttrLabel ListHeaderNItemsPropertyInfo = "n-items"
        type AttrOrigin ListHeaderNItemsPropertyInfo = ListHeader
        attrGet = getListHeaderNItems
        attrSet = undefined
        attrPut = undefined
        attrTransfer _ = undefined
        attrConstruct = undefined
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.ListHeader.nItems"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-ListHeader.html#g:attr:nItems"
            })
    #endif

    -- VVV Prop "start"
       -- Type: TBasicType TUInt
       -- Flags: [PropertyReadable]
       -- Nullable: (Just False,Nothing)

    -- | Get the value of the “@start@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' listHeader #start
    -- @
    getListHeaderStart :: (MonadIO m, IsListHeader o) => o -> m Word32
    getListHeaderStart :: forall (m :: * -> *) o.
    (MonadIO m, IsListHeader o) =>
    o -> m Word32
    getListHeaderStart o
    obj = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ o -> String -> IO Word32
    forall a. GObject a => a -> String -> IO Word32
    B.Properties.getObjectPropertyUInt32 o
    obj String
    "start"

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderStartPropertyInfo
    instance AttrInfo ListHeaderStartPropertyInfo where
        type AttrAllowedOps ListHeaderStartPropertyInfo = '[ 'AttrGet]
        type AttrBaseTypeConstraint ListHeaderStartPropertyInfo = IsListHeader
        type AttrSetTypeConstraint ListHeaderStartPropertyInfo = (~) ()
        type AttrTransferTypeConstraint ListHeaderStartPropertyInfo = (~) ()
        type AttrTransferType ListHeaderStartPropertyInfo = ()
        type AttrGetType ListHeaderStartPropertyInfo = Word32
        type AttrLabel ListHeaderStartPropertyInfo = "start"
        type AttrOrigin ListHeaderStartPropertyInfo = ListHeader
        attrGet = getListHeaderStart
        attrSet = undefined
        attrPut = undefined
        attrTransfer _ = undefined
        attrConstruct = undefined
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.ListHeader.start"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-ListHeader.html#g:attr:start"
            })
    #endif

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList ListHeader
    type instance O.AttributeList ListHeader = ListHeaderAttributeList
    type ListHeaderAttributeList = ('[ '("child", ListHeaderChildPropertyInfo), '("end", ListHeaderEndPropertyInfo), '("item", ListHeaderItemPropertyInfo), '("nItems", ListHeaderNItemsPropertyInfo), '("start", ListHeaderStartPropertyInfo)] :: [(Symbol, DK.Type)])
    #endif

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

    listHeaderEnd :: AttrLabelProxy "end"
    listHeaderEnd = AttrLabelProxy

    listHeaderItem :: AttrLabelProxy "item"
    listHeaderItem = AttrLabelProxy

    listHeaderNItems :: AttrLabelProxy "nItems"
    listHeaderNItems = AttrLabelProxy

    listHeaderStart :: AttrLabelProxy "start"
    listHeaderStart = AttrLabelProxy

    #endif

    #if defined(ENABLE_OVERLOADING)
    type instance O.SignalList ListHeader = ListHeaderSignalList
    type ListHeaderSignalList = ('[ '("notify", GObject.Object.ObjectNotifySignalInfo)] :: [(Symbol, DK.Type)])

    #endif

    -- method ListHeader::get_child
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "self"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "ListHeader" }
    --           , argCType = Just "GtkListHeader*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkListHeader`" , 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_list_header_get_child" gtk_list_header_get_child ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        IO (Ptr Gtk.Widget.Widget)

    -- | Gets the child previously set via 'GI.Gtk.Objects.ListHeader.listHeaderSetChild' or
    -- 'P.Nothing' if none was set.
    --
    -- /Since: 4.12/
    listHeaderGetChild ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> m (Maybe Gtk.Widget.Widget)
        -- ^ __Returns:__ The child
    listHeaderGetChild :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsListHeader a) =>
    a -> m (Maybe Widget)
    listHeaderGetChild a
    self = 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
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        result <- gtk_list_header_get_child self'
        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 self
        return maybeResult

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

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

    #endif

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

    foreign import ccall "gtk_list_header_get_end" gtk_list_header_get_end ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        IO Word32

    -- | Gets the end position in the model of the section that /@self@/ is
    -- currently the header for.
    --
    -- If /@self@/ is unbound, 'GI.Gtk.Constants.INVALID_LIST_POSITION' is returned.
    --
    -- /Since: 4.12/
    listHeaderGetEnd ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> m Word32
        -- ^ __Returns:__ The end position of the section
    listHeaderGetEnd :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsListHeader a) =>
    a -> m Word32
    listHeaderGetEnd a
    self = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ do
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        result <- gtk_list_header_get_end self'
        touchManagedPtr self
        return result

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderGetEndMethodInfo
    instance (signature ~ (m Word32), MonadIO m, IsListHeader a) => O.OverloadedMethod ListHeaderGetEndMethodInfo a signature where
        overloadedMethod = listHeaderGetEnd

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

    #endif

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

    foreign import ccall "gtk_list_header_get_item" gtk_list_header_get_item ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        IO (Ptr GObject.Object.Object)

    -- | Gets the model item at the start of the section.
    -- This is the item that occupies the list model at position
    -- [ListHeader:start]("GI.Gtk.Objects.ListHeader#g:attr:start").
    --
    -- If /@self@/ is unbound, this function returns 'P.Nothing'.
    --
    -- /Since: 4.12/
    listHeaderGetItem ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> m (Maybe GObject.Object.Object)
        -- ^ __Returns:__ The item displayed
    listHeaderGetItem :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsListHeader a) =>
    a -> m (Maybe Object)
    listHeaderGetItem a
    self = IO (Maybe Object) -> m (Maybe Object)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Object) -> m (Maybe Object))
    -> IO (Maybe Object) -> m (Maybe Object)
    forall a b. (a -> b) -> a -> b
    $ do
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        result <- gtk_list_header_get_item self'
        maybeResult <- convertIfNonNull result $ \Ptr Object
    result' -> do
            result'' <- ((ManagedPtr Object -> Object) -> Ptr Object -> IO Object
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Object -> Object
    GObject.Object.Object) Ptr Object
    result'
            return result''
        touchManagedPtr self
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderGetItemMethodInfo
    instance (signature ~ (m (Maybe GObject.Object.Object)), MonadIO m, IsListHeader a) => O.OverloadedMethod ListHeaderGetItemMethodInfo a signature where
        overloadedMethod = listHeaderGetItem

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

    #endif

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

    foreign import ccall "gtk_list_header_get_n_items" gtk_list_header_get_n_items ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        IO Word32

    -- | Gets the the number of items in the section.
    --
    -- If /@self@/ is unbound, 0 is returned.
    --
    -- /Since: 4.12/
    listHeaderGetNItems ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> m Word32
        -- ^ __Returns:__ The number of items in the section
    listHeaderGetNItems :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsListHeader a) =>
    a -> m Word32
    listHeaderGetNItems a
    self = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ do
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        result <- gtk_list_header_get_n_items self'
        touchManagedPtr self
        return result

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderGetNItemsMethodInfo
    instance (signature ~ (m Word32), MonadIO m, IsListHeader a) => O.OverloadedMethod ListHeaderGetNItemsMethodInfo a signature where
        overloadedMethod = listHeaderGetNItems

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

    #endif

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

    foreign import ccall "gtk_list_header_get_start" gtk_list_header_get_start ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        IO Word32

    -- | Gets the start position in the model of the section that /@self@/ is
    -- currently the header for.
    --
    -- If /@self@/ is unbound, 'GI.Gtk.Constants.INVALID_LIST_POSITION' is returned.
    --
    -- /Since: 4.12/
    listHeaderGetStart ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> m Word32
        -- ^ __Returns:__ The start position of the section
    listHeaderGetStart :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsListHeader a) =>
    a -> m Word32
    listHeaderGetStart a
    self = IO Word32 -> m Word32
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Word32 -> m Word32) -> IO Word32 -> m Word32
    forall a b. (a -> b) -> a -> b
    $ do
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        result <- gtk_list_header_get_start self'
        touchManagedPtr self
        return result

    #if defined(ENABLE_OVERLOADING)
    data ListHeaderGetStartMethodInfo
    instance (signature ~ (m Word32), MonadIO m, IsListHeader a) => O.OverloadedMethod ListHeaderGetStartMethodInfo a signature where
        overloadedMethod = listHeaderGetStart

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

    #endif

    -- method ListHeader::set_child
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "self"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "ListHeader" }
    --           , argCType = Just "GtkListHeader*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkListHeader`" , 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 list item's child or %NULL to unset"
    --                 , 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_list_header_set_child" gtk_list_header_set_child ::
        Ptr ListHeader ->                       -- self : TInterface (Name {namespace = "Gtk", name = "ListHeader"})
        Ptr Gtk.Widget.Widget ->                -- child : TInterface (Name {namespace = "Gtk", name = "Widget"})
        IO ()

    -- | Sets the child to be used for this listitem.
    --
    -- This function is typically called by applications when
    -- setting up a header so that the widget can be reused when
    -- binding it multiple times.
    --
    -- /Since: 4.12/
    listHeaderSetChild ::
        (B.CallStack.HasCallStack, MonadIO m, IsListHeader a, Gtk.Widget.IsWidget b) =>
        a
        -- ^ /@self@/: a @GtkListHeader@
        -> Maybe (b)
        -- ^ /@child@/: The list item\'s child or 'P.Nothing' to unset
        -> m ()
    listHeaderSetChild :: forall (m :: * -> *) a b.
    (HasCallStack, MonadIO m, IsListHeader a, IsWidget b) =>
    a -> Maybe b -> m ()
    listHeaderSetChild a
    self 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
        self' <- a -> IO (Ptr ListHeader)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    self
        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_list_header_set_child self' maybeChild
        touchManagedPtr self
        whenJust child touchManagedPtr
        return ()

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

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

    #endif