@java.lang.Override
      public Builder clear() {
        super.clear();
        bitField0_ = 0;
        if (autoModeBuilder_ != null) {
          autoModeBuilder_.clear();
        }
        if (manualModeBuilder_ != null) {
          manualModeBuilder_.clear();
        }
        routingConfigCase_ = 0;
        routingConfig_ = null;
        return this;
      }
<pre>
The configuration for routing the request to a specific model.
</pre>

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