module Val:sig
..end
val mk : ?loc:Location.t ->
?attrs:Ast_407.Parsetree.attributes ->
?docs:Ast_407.Docstrings.docs ->
?prim:string list ->
string Ast_407.Asttypes.loc ->
Ast_407.Parsetree.core_type -> Ast_407.Parsetree.value_description