__ASSIGN_FETCH_TYPE
__ASSIGN_FETCH_TYPE("string", string, string, sizeof(u32), 1, 1,
__ASSIGN_FETCH_TYPE("ustring", string, string, sizeof(u32), 1, 1,
__ASSIGN_FETCH_TYPE("symstr", string, string, sizeof(u32), 1, 1,
__ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, 0, #_fmttype)