public Builder setRequestId(long value) {
            copyOnWrite();
            instance.setRequestId(value);
            return this;
        }
<pre>
Response =&gt; [4, 9]
"request_id" is used to tell the client that
this notification is a response to the specific request
</pre>

<code>optional int64 request_id = 4;</code>

@param value The requestId to set.
@return This builder for chaining.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/notification/TurmsNotification.java