@java.lang.Override
    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
      return getFileDescriptor().findServiceByName("Workflows");
    }
<pre>
Updates an existing workflow.
Running this method has no impact on already running executions of the
workflow. A new revision of the workflow may be created as a result of a
successful update operation. In that case, such revision will be used
in new workflow executions.
</pre>
java-workflows/grpc-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/WorkflowsGrpc.java