private void ensureCustomAttributesIsMutable() {
            if ((bitField0_ & 0x00000002) == 0) {
                customAttributes_ = new java.util.ArrayList<>(customAttributes_);
                bitField0_ |= 0x00000002;
            }
        }
<pre>
Note: "request_id" is allowed to be duplicate because
it is used for clients to identify the response of the same request id in a session
</pre>

<code>optional int64 request_id = 1;</code>

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