diff --git a/WeChatFerry/spy/rpc_helper.h b/WeChatFerry/spy/rpc_helper.h
index f4e19c0..8aa76fc 100644
--- a/WeChatFerry/spy/rpc_helper.h
+++ b/WeChatFerry/spy/rpc_helper.h
@@ -9,7 +9,9 @@
 #include "pb_encode.h"
 #include "pb_types.h"
 
-static const std::unordered_map<Functions, int> rpc_function_map
+using FunctionHandler = std::function<bool(const Request &, uint8_t *, size_t *)>;
+
+static const std::unordered_map<Functions, int> rpc_tag_map
     = { { Functions_FUNC_IS_LOGIN, Response_status_tag },
         { Functions_FUNC_GET_SELF_WXID, Response_str_tag },
         { Functions_FUNC_GET_USER_INFO, Response_ui_tag },
@@ -39,13 +41,46 @@ static const std::unordered_map<Functions, int> rpc_function_map
         { Functions_FUNC_DEL_ROOM_MEMBERS, Response_status_tag },
         { Functions_FUNC_INV_ROOM_MEMBERS, Response_status_tag } };
 
+const std::unordered_map<Functions, FunctionHandler> rpc_function_map = {
+    { Functions_FUNC_IS_LOGIN, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_SELF_WXID, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_USER_INFO, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_MSG_TYPES, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_CONTACTS, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_DB_NAMES, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_DB_TABLES, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_GET_AUDIO_MSG, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_TXT, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_IMG, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_FILE, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_RICH_TXT, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_PAT_MSG, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_FORWARD_MSG, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_SEND_EMOTION, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_ENABLE_RECV_TXT, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_DISABLE_RECV_TXT, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_EXEC_DB_QUERY, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_REFRESH_PYQ, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_DOWNLOAD_ATTACH, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_RECV_TRANSFER, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_REVOKE_MSG, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_REFRESH_QRCODE, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_DECRYPT_IMAGE, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_EXEC_OCR, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_ADD_ROOM_MEMBERS, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_DEL_ROOM_MEMBERS, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    { Functions_FUNC_INV_ROOM_MEMBERS, [](const Request &r, uint8_t *out, size_t *out_len) { return; } },
+    // clang-format off
+    // clang-format on
+};
+
 template <Functions FuncType, typename AssignFunc> bool fill_response(uint8_t *out, size_t *len, AssignFunc assign)
 {
     Response rsp = Response_init_default;
     rsp.func     = FuncType;
 
-    auto it = rpc_function_map.find(FuncType);
-    if (it == rpc_function_map.end()) {
+    auto it = rpc_tag_map.find(FuncType);
+    if (it == rpc_tag_map.end()) {
         LOG_ERROR("Unknown function type: {}", magic_enum::enum_name(rsp.func));
         return false;
     }