public Builder clearRetrievedContext() {
      if (retrievedContextBuilder_ == null) {
        if (chunkTypeCase_ == 2) {
          chunkTypeCase_ = 0;
          chunkType_ = null;
          onChanged();
        }
      } else {
        if (chunkTypeCase_ == 2) {
          chunkTypeCase_ = 0;
          chunkType_ = null;
        }
        retrievedContextBuilder_.clear();
      }
      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