public Builder clearTrackSid() {
            trackSid_ = getDefaultInstance().getTrackSid();
            bitField0_ &= ~0x00000004;
            onChanged();
            return this;
        }
<pre>
sid of the track to mute
</pre>

<code>string track_sid = 3;</code>

@return This builder for chaining.
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/room/MuteRoomTrackRequest.java