private com.google.protobuf.SingleFieldBuilder<im.turms.plugin.livekit.core.proto.models.ParticipantInfo, im.turms.plugin.livekit.core.proto.models.ParticipantInfo.Builder, im.turms.plugin.livekit.core.proto.models.ParticipantInfoOrBuilder> getParticipantFieldBuilder() {
            if (participantBuilder_ == null) {
                participantBuilder_ = new com.google.protobuf.SingleFieldBuilder<>(
                        getParticipant(),
                        getParentForChildren(),
                        isClean());
                participant_ = null;
            }
            return participantBuilder_;
        }
<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