public com.google.cloud.vertexai.api.SlackSource.SlackChannels getChannels(int index) {
      if (channelsBuilder_ == null) {
        return channels_.get(index);
      } else {
        return channelsBuilder_.getMessage(index);
      }
    }
<pre>
Required. The Slack channels.
</pre>

<code>
repeated .google.cloud.vertexai.v1.SlackSource.SlackChannels channels = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SlackSource.java