diff --git a/include/pocketpy/common/str.hpp b/include/pocketpy/common/str.hpp
index ff7547f6..88aab55f 100644
--- a/include/pocketpy/common/str.hpp
+++ b/include/pocketpy/common/str.hpp
@@ -399,6 +399,63 @@ struct CString {
     operator const char* () const { return ptr; }
 };
 
+// unary operators
+using ::__repr__;
+using ::__str__;
+using ::__hash__;
+using ::__len__;
+using ::__iter__;
+using ::__next__;
+using ::__neg__;
+// logical operators
+using ::__eq__;
+using ::__lt__;
+using ::__le__;
+using ::__gt__;
+using ::__ge__;
+using ::__contains__;
+// binary operators
+using ::__add__;
+using ::__radd__;
+using ::__sub__;
+using ::__rsub__;
+using ::__mul__;
+using ::__rmul__;
+using ::__truediv__;
+using ::__floordiv__;
+using ::__mod__;
+using ::__pow__;
+using ::__matmul__;
+using ::__lshift__;
+using ::__rshift__;
+using ::__and__;
+using ::__or__;
+using ::__xor__;
+using ::__invert__;
+// indexer
+using ::__getitem__;
+using ::__setitem__;
+using ::__delitem__;
+
+// specials
+using ::__new__;
+using ::__init__;
+using ::__call__;
+using ::__divmod__;
+using ::__enter__;
+using ::__exit__;
+using ::__name__;
+using ::__all__;
+using ::__package__;
+using ::__path__;
+using ::__class__;
+using ::__missing__;
+
+using ::pk_id_add;
+using ::pk_id_set;
+using ::pk_id_long;
+using ::pk_id_complex;
+
 #define DEF_SNAME(name) const static StrName name(#name)
 
 }  // namespace pkpy