public Builder clearParticipant() {
            bitField0_ &= ~0x00000004;
            participant_ = null;
            if (participantBuilder_ != null) {
                participantBuilder_.dispose();
                participantBuilder_ = null;
            }
            onChanged();
            return this;
        }
<pre>
set when event is participant_* or track_*
</pre>

<code>.livekit.ParticipantInfo participant = 3;</code>
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/webhook/WebhookEvent.java