static STG_CLIENT* get();
static bool configure(const std::string& address, Callback callback, void* data);
static STG_CLIENT* get();
static bool configure(const std::string& address, Callback callback, void* data);
bool request(TYPE type, const std::string& userName, const std::string& password, const PAIRS& pairs);
bool request(TYPE type, const std::string& userName, const std::string& password, const PAIRS& pairs);