private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Duration,
            com.google.protobuf.Duration.Builder,
            com.google.protobuf.DurationOrBuilder>
        getResultEndTimeFieldBuilder() {
      if (resultEndTimeBuilder_ == null) {
        resultEndTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Duration,
                com.google.protobuf.Duration.Builder,
                com.google.protobuf.DurationOrBuilder>(
                getResultEndTime(), getParentForChildren(), isClean());
        resultEndTime_ = null;
      }
      return resultEndTimeBuilder_;
    }
<pre>
Time offset of the end of this result relative to the
beginning of the audio.
</pre>

<code>.google.protobuf.Duration result_end_time = 4;</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/StreamingRecognitionResult.java