public Builder mergeTimeInterval(com.google.cloud.video.livestream.v1.TimeInterval value) {
        if (timeIntervalBuilder_ == null) {
          if (kindCase_ == 1
              && kind_ != com.google.cloud.video.livestream.v1.TimeInterval.getDefaultInstance()) {
            kind_ =
                com.google.cloud.video.livestream.v1.TimeInterval.newBuilder(
                        (com.google.cloud.video.livestream.v1.TimeInterval) kind_)
                    .mergeFrom(value)
                    .buildPartial();
          } else {
            kind_ = value;
          }
          onChanged();
        } else {
          if (kindCase_ == 1) {
            timeIntervalBuilder_.mergeFrom(value);
          } else {
            timeIntervalBuilder_.setMessage(value);
          }
        }
        kindCase_ = 1;
        return this;
      }
<pre>
A time interval in the form of a tuple of Unix epoch time.
</pre>

<code>.google.cloud.video.livestream.v1.TimeInterval time_interval = 1;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/DvrSession.java