public com.google.cloud.vertexai.api.GroundingSupportOrBuilder getGroundingSupportsOrBuilder(
        int index) {
      if (groundingSupportsBuilder_ == null) {
        return groundingSupports_.get(index);
      } else {
        return groundingSupportsBuilder_.getMessageOrBuilder(index);
      }
    }
<pre>
Optional. List of grounding support.
</pre>

<code>
repeated .google.cloud.vertexai.v1.GroundingSupport grounding_supports = 6 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GroundingMetadata.java