@java.lang.Override
        public Builder toBuilder() {
          return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
        }
<pre>
Optional. The workload type for the multi-node request.
</pre>

<code>
.google.cloud.tpu.v2alpha1.QueuedResource.Tpu.NodeSpec.MultiNodeParams.WorkloadType workload_type = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>

@return The workloadType.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/QueuedResource.java