@java.lang.Override
  public com.google.cloud.vertexai.api.FunctionCall getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
<pre>
Optional. Required. The function parameters and values in JSON object
format. See [FunctionDeclaration.parameters] for parameter details.
</pre>

<code>.google.protobuf.Struct args = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/FunctionCall.java