@java.lang.Override
    public int hashCode() {
        if (memoizedHashCode != 0) {
            return memoizedHashCode;
        }
        int hash = 41;
        hash = (19 * hash) + getDescriptor().hashCode();
        hash = (37 * hash) + PARTICIPANT_SID_FIELD_NUMBER;
        hash = (53 * hash) + getParticipantSid().hashCode();
        hash = (37 * hash) + PARTICIPANT_IDENTITY_FIELD_NUMBER;
        hash = (53 * hash) + getParticipantIdentity().hashCode();
        hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
        hash = (53 * hash) + getPayload().hashCode();
        if (getDestinationSidsCount() > 0) {
            hash = (37 * hash) + DESTINATION_SIDS_FIELD_NUMBER;
            hash = (53 * hash) + getDestinationSidsList().hashCode();
        }
        if (getDestinationIdentitiesCount() > 0) {
            hash = (37 * hash) + DESTINATION_IDENTITIES_FIELD_NUMBER;
            hash = (53 * hash) + getDestinationIdentitiesList().hashCode();
        }
        if (hasTopic()) {
            hash = (37 * hash) + TOPIC_FIELD_NUMBER;
            hash = (53 * hash) + getTopic().hashCode();
        }
        hash = (29 * hash) + getUnknownFields().hashCode();
        memoizedHashCode = hash;
        return hash;
    }
<pre>
topic under which the message was published
</pre>

<code>optional string topic = 4;</code>

@return The bytes for topic.
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/models/UserPacket.java