
This is to prepare Muxer to become public PiperOrigin-RevId: 481893842 (cherry picked from commit bd9181e6ba5daf865f9c2f4338f1238b108dafd8)
This is to prepare Muxer to become public PiperOrigin-RevId: 481893842 (cherry picked from commit bd9181e6ba5daf865f9c2f4338f1238b108dafd8)