module Val:sig
..end
val mk : ?loc:Location.t ->
?attrs:Ast_406.Parsetree.attributes ->
?docs:Ast_406.Docstrings.docs ->
?prim:string list ->
string Ast_406.Asttypes.loc ->
Ast_406.Parsetree.core_type -> Ast_406.Parsetree.value_description