public Builder clearRetentionConfig() {
      bitField0_ = (bitField0_ & ~0x00020000);
      retentionConfig_ = null;
      if (retentionConfigBuilder_ != null) {
        retentionConfigBuilder_.dispose();
        retentionConfigBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Optional. Configuration for retention of output files for this channel.
</pre>

<code>
.google.cloud.video.livestream.v1.RetentionConfig retention_config = 26 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Channel.java