public Builder setRetrievedContext(
        com.google.cloud.vertexai.api.GroundingChunk.RetrievedContext value) {
      if (retrievedContextBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        chunkType_ = value;
        onChanged();
      } else {
        retrievedContextBuilder_.setMessage(value);
      }
      chunkTypeCase_ = 2;
      return this;
    }
<pre>
Grounding chunk from context retrieved by the retrieval tools.
</pre>

<code>.google.cloud.vertexai.v1.GroundingChunk.RetrievedContext retrieved_context = 2;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GroundingChunk.java