public Builder mergeOutputConfig(
        com.google.cloud.translate.v3.BatchDocumentOutputConfig value) {
      if (outputConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000010) != 0)
            && outputConfig_ != null
            && outputConfig_
                != com.google.cloud.translate.v3.BatchDocumentOutputConfig.getDefaultInstance()) {
          getOutputConfigBuilder().mergeFrom(value);
        } else {
          outputConfig_ = value;
        }
      } else {
        outputConfigBuilder_.mergeFrom(value);
      }
      if (outputConfig_ != null) {
        bitField0_ |= 0x00000010;
        onChanged();
      }
      return this;
    }
<pre>
Required. Output configuration.
If 2 input configs match to the same file (that is, same input path),
we don't generate output for duplicate inputs.
</pre>

<code>
.google.cloud.translation.v3.BatchDocumentOutputConfig output_config = 5 [(.google.api.field_behavior) = REQUIRED];
</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/BatchTranslateDocumentRequest.java