public Builder setOutputConfig(com.google.cloud.vision.v1p4beta1.OutputConfig value) {
      if (outputConfigBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        outputConfig_ = value;
      } else {
        outputConfigBuilder_.setMessage(value);
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
Required. The desired output location and metadata (e.g. format).
</pre>

<code>
.google.cloud.vision.v1p4beta1.OutputConfig output_config = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/AsyncBatchAnnotateImagesRequest.java