private void ensureInputAttachmentsIsMutable() {
      if (!((bitField0_ & 0x00000010) != 0)) {
        inputAttachments_ =
            new java.util.ArrayList<com.google.cloud.video.livestream.v1.InputAttachment>(
                inputAttachments_);
        bitField0_ |= 0x00000010;
      }
    }
<pre>
User-defined key/value metadata.
</pre>

<code>map&lt;string, string&gt; labels = 4;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Channel.java