public Builder mergeMultiNodeParams(
            com.google.cloud.tpu.v2alpha1.QueuedResource.Tpu.NodeSpec.MultiNodeParams value) {
          if (multiNodeParamsBuilder_ == null) {
            if (((bitField0_ & 0x00000004) != 0)
                && multiNodeParams_ != null
                && multiNodeParams_
                    != com.google.cloud.tpu.v2alpha1.QueuedResource.Tpu.NodeSpec.MultiNodeParams
                        .getDefaultInstance()) {
              getMultiNodeParamsBuilder().mergeFrom(value);
            } else {
              multiNodeParams_ = value;
            }
          } else {
            multiNodeParamsBuilder_.mergeFrom(value);
          }
          if (multiNodeParams_ != null) {
            bitField0_ |= 0x00000004;
            onChanged();
          }
          return this;
        }
<pre>
Optional. Fields to specify in case of multi-node request.
</pre>

<code>
.google.cloud.tpu.v2alpha1.QueuedResource.Tpu.NodeSpec.MultiNodeParams multi_node_params = 6 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java