`sig val mk : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Parsetree.module_type_desc -> Parsetree.module_type val attr : Parsetree.module_type -> Parsetree.attribute -> Parsetree.module_type val ident : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Ast_helper.lid -> Parsetree.module_type val alias : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Ast_helper.lid -> Parsetree.module_type val signature : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Parsetree.signature -> Parsetree.module_type val functor_ : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Ast_helper.str -> Parsetree.module_type option -> Parsetree.module_type -> Parsetree.module_type val with_ : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Parsetree.module_type -> Parsetree.with_constraint list -> Parsetree.module_type val typeof_ : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Parsetree.module_expr -> Parsetree.module_type val extension : ?loc:Ast_helper.loc -> ?attrs:Ast_helper.attrs -> Parsetree.extension -> Parsetree.module_type end`