@java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
      return com.google.cloud.vertexai.api.ToolProto
          .internal_static_google_cloud_vertexai_v1_Tool_descriptor;
    }
<pre>
Tool details that the model may use to generate response.

A `Tool` is a piece of code that enables the system to interact with
external systems to perform an action, or set of actions, outside of
knowledge and scope of the model. A Tool object should contain exactly
one type of Tool (e.g FunctionDeclaration, Retrieval or
GoogleSearchRetrieval).
</pre>

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