Ast_helper.SigSignature items
val type_subst : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.type_declaration list -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval type_extension : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.type_extension -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval exception_ : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.type_exception -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval module_ : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.module_declaration -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval mod_subst : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.module_substitution -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval rec_module : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.module_declaration list -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval include_ : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.include_description -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval class_ : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.class_description list -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval class_type : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.class_type_declaration list -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval extension : ?loc:loc -> ?attrs:attrs -> Migrate_parsetree.Ast_412.Parsetree.extension -> Migrate_parsetree.Ast_412.Parsetree.signature_itemval attribute : ?loc:loc -> Migrate_parsetree.Ast_412.Parsetree.attribute -> Migrate_parsetree.Ast_412.Parsetree.signature_item