private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.translate.v3.AdaptiveMtFile,
            com.google.cloud.translate.v3.AdaptiveMtFile.Builder,
            com.google.cloud.translate.v3.AdaptiveMtFileOrBuilder>
        getAdaptiveMtFileFieldBuilder() {
      if (adaptiveMtFileBuilder_ == null) {
        adaptiveMtFileBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.translate.v3.AdaptiveMtFile,
                com.google.cloud.translate.v3.AdaptiveMtFile.Builder,
                com.google.cloud.translate.v3.AdaptiveMtFileOrBuilder>(
                getAdaptiveMtFile(), getParentForChildren(), isClean());
        adaptiveMtFile_ = null;
      }
      return adaptiveMtFileBuilder_;
    }
<pre>
Output only. The Adaptive MT file that was imported.
</pre>

<code>
.google.cloud.translation.v3.AdaptiveMtFile adaptive_mt_file = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/ImportAdaptiveMtFileResponse.java