@java.lang.Override
  public com.google.protobuf.Parser<ToolConfig> getParserForType() {
    return PARSER;
  }
<pre>
Optional. Retrieval config.
</pre>

<code>
.google.cloud.vertexai.v1.RetrievalConfig retrieval_config = 2 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ToolConfig.java