RTSPMessage.unset

Unset the contents of msg so that it becomes an uninitialized #GstRTSPMessage again. This function is mostly used in combination with gstrtsp.rtspmessage.RTSPMessage.initRequest, gstrtsp.rtspmessage.RTSPMessage.initResponse and gstrtsp.rtspmessage.RTSPMessage.initData on stack allocated #GstRTSPMessage structures.