public com.google.cloud.vertexai.api.VertexAISearch.Builder getVertexAiSearchBuilder() {
      return getVertexAiSearchFieldBuilder().getBuilder();
    }
<pre>
Set to use data source powered by Vertex AI Search.
</pre>

<code>.google.cloud.vertexai.v1.VertexAISearch vertex_ai_search = 2;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/Retrieval.java