module Mtd: sig .. end
sig
end
val mk : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> ?typ:Parsetree.module_type -> Ast_helper.str -> Parsetree.module_type_declaration
?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> ?typ:Parsetree.module_type -> Ast_helper.str -> Parsetree.module_type_declaration