private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmmigration.v1.CloneJob,
            com.google.cloud.vmmigration.v1.CloneJob.Builder,
            com.google.cloud.vmmigration.v1.CloneJobOrBuilder>
        getCloneJobFieldBuilder() {
      if (cloneJobBuilder_ == null) {
        cloneJobBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmmigration.v1.CloneJob,
                com.google.cloud.vmmigration.v1.CloneJob.Builder,
                com.google.cloud.vmmigration.v1.CloneJobOrBuilder>(
                getCloneJob(), getParentForChildren(), isClean());
        cloneJob_ = null;
      }
      return cloneJobBuilder_;
    }
<pre>
Required. The clone request body.
</pre>

<code>
.google.cloud.vmmigration.v1.CloneJob clone_job = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/CreateCloneJobRequest.java