private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.vertexai.api.GroundingSupport,
            com.google.cloud.vertexai.api.GroundingSupport.Builder,
            com.google.cloud.vertexai.api.GroundingSupportOrBuilder>
        getGroundingSupportsFieldBuilder() {
      if (groundingSupportsBuilder_ == null) {
        groundingSupportsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.vertexai.api.GroundingSupport,
                com.google.cloud.vertexai.api.GroundingSupport.Builder,
                com.google.cloud.vertexai.api.GroundingSupportOrBuilder>(
                groundingSupports_,
                ((bitField0_ & 0x00000008) != 0),
                getParentForChildren(),
                isClean());
        groundingSupports_ = null;
      }
      return groundingSupportsBuilder_;
    }
<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