private com.google.protobuf.SingleFieldBuilderV3<
            com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
        getErrorFieldBuilder() {
      if (errorBuilder_ == null) {
        errorBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.rpc.Status,
                com.google.rpc.Status.Builder,
                com.google.rpc.StatusOrBuilder>(getError(), getParentForChildren(), isClean());
        error_ = null;
      }
      return errorBuilder_;
    }
<pre>
Only populated when operation doesn't succeed.
</pre>

<code>.google.rpc.Status error = 4;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/ExportDataMetadata.java