Ast_helper.OpnOpens
Opens
val mk :
?loc:Ocaml_common.Location.t ->
?attrs:Migrate_parsetree.Ast_410.Parsetree.attribute list ->
?override:Migrate_parsetree.Ast_410.Asttypes.override_flag ->
'a ->
'a Migrate_parsetree.Ast_410.Parsetree.open_infos