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YAR_VERSION (string)
YAR_CLIENT_PROTOCOL_HTTP (integer)
YAR_CLIENT_OPT_PACKAGER (integer)
YAR_CLIENT_OPT_TIMEOUT (integer)
YAR_CLIENT_OPT_CONNECT_TIMEOUT (integer)
YAR_PACKAGER_PHP (string)
YAR_PACKAGER_JSON (string)
YAR_ERR_OKEY (integer)
YAR_ERR_OUTPUT (integer)
YAR_ERR_TRANSPORT (integer)
YAR_ERR_REQUEST (integer)
YAR_ERR_PROTOCOL (integer)
YAR_ERR_PACKAGER (integer)
YAR_ERR_EXCEPTION (integer)