Need to fix my Variadic Macros

I want to use variadic macros but I get errors

#define SERVER_RE_1(ServerFunction, Type1)                          \
    {                                                               \
        Type1 arg1;                                                 \
        getData(args, arg1);                                        \
        sv. ## ServerFunction ## (ssl, arg1);                       \
    }

#define SERVER_RE_2(ServerFunction, Type1, Type2)                   \
    {                                                               \
        Type1 arg1;                                                 \
        Type2 arg2;                                                 \
        getData(args, arg1, arg2);                                  \
        sv. ## ServerFunction ## (ssl, arg1, arg2);                 \
    }

#define SERVER_RE_3(ServerFunction, Type1, Type2, Type3)            \
    {                                                               \
        Type1 arg1;                                                 \
        Type2 arg2;                                                 \
        Type3 arg3;                                                 \
        getData(args, arg1, arg2, arg3);                            \
        sv. ## ServerFunction ## (ssl, arg1, arg2, arg3);           \
    }

#define GET_MACRO(_1,_2,_3,_4,NAME,...) NAME
#define SERVER_RE(...) GET_MACRO(__VA_ARGS__, SERVER_RE_3, SERVER_RE_2, SERVER_RE_1)(__VA_ARGS__)

-

SERVER_RE(signIn, std::string, std::string);

error C2065: 'signIn' : undeclared identifier
error C2275: 'std::string' : illegal use of this type as an expression

-

But SERVER_RE_2 works good.

SERVER_RE(signIn, std::string, std::string);