std::ostream& operator<<(std::ostream& os, Z_HTTP_Response& httpres);
std::ostream& operator<<(std::ostream& os, Z_Records & rs);
std::ostream& operator<<(std::ostream& os, Z_DiagRec& dr);
std::ostream& operator<<(std::ostream& os, Z_HTTP_Response& httpres);
std::ostream& operator<<(std::ostream& os, Z_Records & rs);
std::ostream& operator<<(std::ostream& os, Z_DiagRec& dr);