public Builder mergeResponseMetadata(
        com.google.cloud.video.stitcher.v1.ResponseMetadata value) {
      if (responseMetadataBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && responseMetadata_ != null
            && responseMetadata_
                != com.google.cloud.video.stitcher.v1.ResponseMetadata.getDefaultInstance()) {
          getResponseMetadataBuilder().mergeFrom(value);
        } else {
          responseMetadata_ = value;
        }
      } else {
        responseMetadataBuilder_.mergeFrom(value);
      }
      if (responseMetadata_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
The response metadata received from the ad request.
</pre>

<code>.google.cloud.video.stitcher.v1.ResponseMetadata response_metadata = 3;</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/AdRequest.java