# Module Ast_406.Ast_helper.Cty

    module Cty: sig .. end

    val mk : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Ast_406.Parsetree.class_type_desc -> Ast_406.Parsetree.class_type

    val attr : Ast_406.Parsetree.class_type ->
           Ast_406.Parsetree.attribute -> Ast_406.Parsetree.class_type

    val constr : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Longident.t Ast_406.Asttypes.loc ->
           Ast_406.Parsetree.core_type list -> Ast_406.Parsetree.class_type

    val signature : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Ast_406.Parsetree.class_signature -> Ast_406.Parsetree.class_type

    val arrow : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Ast_406.Asttypes.arg_label ->
           Ast_406.Parsetree.core_type ->
           Ast_406.Parsetree.class_type -> Ast_406.Parsetree.class_type

    val extension : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Ast_406.Parsetree.extension -> Ast_406.Parsetree.class_type

    val open_ : ?loc:Location.t ->
           ?attrs:Ast_406.Parsetree.attributes ->
           Ast_406.Asttypes.override_flag ->
           Longident.t Ast_406.Asttypes.loc ->
           Ast_406.Parsetree.class_type -> Ast_406.Parsetree.class_type