tk_hash_kv       1868 ext/tk/tkutil/tkutil.c     rb_define_singleton_method(mTK, "hash_kv", tk_hash_kv, -1);
tk_hash_kv       1884 ext/tk/tkutil/tkutil.c     rb_define_method(mTK, "hash_kv", tk_hash_kv, -1);