val mk : ?loc:loc -> Parsetree.signature_item_desc -> Parsetree.signature_itemval value : ?loc:loc -> Parsetree.value_description -> Parsetree.signature_itemval type_ : ?loc:loc -> Asttypes.rec_flag -> Parsetree.type_declaration list -> Parsetree.signature_itemval type_subst : ?loc:loc -> Parsetree.type_declaration list -> Parsetree.signature_itemval type_extension : ?loc:loc -> Parsetree.type_extension -> Parsetree.signature_itemval exception_ : ?loc:loc -> Parsetree.type_exception -> Parsetree.signature_itemval module_ : ?loc:loc -> Parsetree.module_declaration -> Parsetree.signature_itemval mod_subst : ?loc:loc -> Parsetree.module_substitution -> Parsetree.signature_itemval rec_module : ?loc:loc -> Parsetree.module_declaration list -> Parsetree.signature_itemval modtype : ?loc:loc -> Parsetree.module_type_declaration -> Parsetree.signature_itemval open_ : ?loc:loc -> Parsetree.open_description -> Parsetree.signature_itemval include_ : ?loc:loc -> Parsetree.include_description -> Parsetree.signature_itemval class_ : ?loc:loc -> Parsetree.class_description list -> Parsetree.signature_itemval class_type : ?loc:loc -> Parsetree.class_type_declaration list -> Parsetree.signature_itemval extension : ?loc:loc -> ?attrs:attrs -> Parsetree.extension -> Parsetree.signature_itemval attribute : ?loc:loc -> Parsetree.attribute -> Parsetree.signature_itemval text : Docstrings.text -> Parsetree.signature_item list