public static com.google.cloud.vertexai.api.GroundingSupport parseFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }
<pre>
Confidence score of the support references. Ranges from 0 to 1. 1 is the
most confident. This list must have the same size as the
grounding_chunk_indices.
</pre>

<code>repeated float confidence_scores = 3;</code>

@param index The index of the element to return.
@return The confidenceScores at the given index.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GroundingSupport.java