private void buildPartial0(com.google.cloud.vertexai.api.Retrieval result) {
      int from_bitField0_ = bitField0_;
      if (((from_bitField0_ & 0x00000004) != 0)) {
        result.disableAttribution_ = disableAttribution_;
      }
    }
<pre>
Defines a retrieval tool that model can call to access external knowledge.
</pre>

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