public com.google.protobuf.ByteString getUriBytes() {
    java.lang.Object ref = "";
    if (audioSourceCase_ == 1) {
      ref = audioSource_;
    }
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      if (audioSourceCase_ == 1) {
        audioSource_ = b;
      }
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
Cloud Storage URI for the audio file.
</pre>

<code>string uri = 1;</code>

@return The bytes for uri.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/BatchRecognizeFileMetadata.java