private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.speech.v2.SrtOutputFileFormatConfig,
            com.google.cloud.speech.v2.SrtOutputFileFormatConfig.Builder,
            com.google.cloud.speech.v2.SrtOutputFileFormatConfigOrBuilder>
        getSrtFieldBuilder() {
      if (srtBuilder_ == null) {
        srtBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.speech.v2.SrtOutputFileFormatConfig,
                com.google.cloud.speech.v2.SrtOutputFileFormatConfig.Builder,
                com.google.cloud.speech.v2.SrtOutputFileFormatConfigOrBuilder>(
                getSrt(), getParentForChildren(), isClean());
        srt_ = null;
      }
      return srtBuilder_;
    }
<pre>
Configuration for the SRT output format. If this field is set, then
transcripts will be written to the sink in the SRT format.
</pre>

<code>.google.cloud.speech.v2.SrtOutputFileFormatConfig srt = 3;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/OutputFormatConfig.java