public Builder clearUri() {
      if (audioSourceCase_ == 1) {
        audioSourceCase_ = 0;
        audioSource_ = null;
        onChanged();
      }
      return this;
    }
<pre>
Cloud Storage URI for the audio file.
</pre>

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

@return This builder for chaining.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/BatchRecognizeFileMetadata.java