private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest,
            com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest.Builder,
            com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequestOrBuilder>
        getSetupRequestFieldBuilder() {
      if (setupRequestBuilder_ == null) {
        if (!(requestCase_ == 6)) {
          request_ =
              com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest.getDefaultInstance();
        }
        setupRequestBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest,
                com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest.Builder,
                com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequestOrBuilder>(
                (com.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest) request_,
                getParentForChildren(),
                isClean());
        request_ = null;
      }
      requestCase_ = 6;
      onChanged();
      return setupRequestBuilder_;
    }
<pre>
The request to setup the initial state of session.

The client must send and only send this as the first message.
</pre>

<code>.google.cloud.visionai.v1.ReceivePacketsRequest.SetupRequest setup_request = 6;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ReceivePacketsRequest.java