public Builder clearRequesterId() {
            bitField0_ &= ~0x00000040;
            requesterId_ = 0L;
            onChanged();
            return this;
        }
<pre>
Notification =&gt; [10, 15]
"requester_id" only exists when a requester triggers a notification to its recipients
Note: Do not move "requester_id" to TurmsRequest because it requires rebuilding
a new TurmsNotification when recipients need "requester_id".
</pre>

<code>optional int64 requester_id = 10;</code>

@return This builder for chaining.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/notification/TurmsNotification.java