Extension.Contexttype 'a t = | Class_expr : Migrate_parsetree.Ast_410.Parsetree.class_expr t| Class_field : Migrate_parsetree.Ast_410.Parsetree.class_field t| Class_type : Migrate_parsetree.Ast_410.Parsetree.class_type t| Class_type_field : Migrate_parsetree.Ast_410.Parsetree.class_type_field t| Core_type : Migrate_parsetree.Ast_410.Parsetree.core_type t| Expression : Migrate_parsetree.Ast_410.Parsetree.expression t| Module_expr : Migrate_parsetree.Ast_410.Parsetree.module_expr t| Module_type : Migrate_parsetree.Ast_410.Parsetree.module_type t| Pattern : Migrate_parsetree.Ast_410.Parsetree.pattern t| Signature_item : Migrate_parsetree.Ast_410.Parsetree.signature_item t| Structure_item : Migrate_parsetree.Ast_410.Parsetree.structure_item tval class_expr : Migrate_parsetree.Ast_410.Parsetree.class_expr tval class_field : Migrate_parsetree.Ast_410.Parsetree.class_field tval class_type : Migrate_parsetree.Ast_410.Parsetree.class_type tval class_type_field : Migrate_parsetree.Ast_410.Parsetree.class_type_field tval core_type : Migrate_parsetree.Ast_410.Parsetree.core_type tval expression : Migrate_parsetree.Ast_410.Parsetree.expression tval module_expr : Migrate_parsetree.Ast_410.Parsetree.module_expr tval module_type : Migrate_parsetree.Ast_410.Parsetree.module_type tval pattern : Migrate_parsetree.Ast_410.Parsetree.pattern tval signature_item : Migrate_parsetree.Ast_410.Parsetree.signature_item tval structure_item : Migrate_parsetree.Ast_410.Parsetree.structure_item tval get_extension :
'a t ->
'a ->
((string Location.loc * Migrate_parsetree.Ast_410.Parsetree.payload)
* Migrate_parsetree.Ast_410.Parsetree.attribute list)
Base.Option.tval merge_attributes :
'a t ->
'a ->
Migrate_parsetree.Ast_410.Parsetree.attribute list ->
'a