public com.google.protobuf.ByteString getOutputUriBytes() {
      java.lang.Object ref = outputUri_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        outputUri_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Optional. Location where the output (in JSON format) should be stored.
Currently, only [Google Cloud Storage](https://cloud.google.com/storage/)
URIs are supported, which must be specified in the following format:
`gs://bucket-id/object-id` (other URI formats return
[google.rpc.Code.INVALID_ARGUMENT][google.rpc.Code.INVALID_ARGUMENT]). For
more information, see [Request
URIs](https://cloud.google.com/storage/docs/request-endpoints).
</pre>

<code>string output_uri = 4 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The bytes for outputUri.
java-video-intelligence/proto-google-cloud-video-intelligence-v1beta2/src/main/java/com/google/cloud/videointelligence/v1beta2/AnnotateVideoRequest.java