public Builder mergeDvrSession(com.google.cloud.video.livestream.v1.DvrSession value) {
      if (dvrSessionBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && dvrSession_ != null
            && dvrSession_
                != com.google.cloud.video.livestream.v1.DvrSession.getDefaultInstance()) {
          getDvrSessionBuilder().mergeFrom(value);
        } else {
          dvrSession_ = value;
        }
      } else {
        dvrSessionBuilder_.mergeFrom(value);
      }
      if (dvrSession_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Required. The resource being created
</pre>

<code>
.google.cloud.video.livestream.v1.DvrSession dvr_session = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/CreateDvrSessionRequest.java