public Builder mergeFrom(com.google.cloud.vertexai.api.VertexAISearch other) {
      if (other == com.google.cloud.vertexai.api.VertexAISearch.getDefaultInstance()) return this;
      if (!other.getDatastore().isEmpty()) {
        datastore_ = other.datastore_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
Retrieve from Vertex AI Search datastore for grounding.
See https://cloud.google.com/products/agent-builder
</pre>

Protobuf type {@code google.cloud.vertexai.v1.VertexAISearch}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/VertexAISearch.java