code: public alluxio.grpc.SetAclAction getAction() {
      alluxio.grpc.SetAclAction result = alluxio.grpc.SetAclAction.valueOf(action_);
      return result == null ? alluxio.grpc.SetAclAction.REPLACE : result;
    }
docs: <pre>
  * the set action to perform
  </pre>
  
  <code>optional .alluxio.grpc.file.SetAclAction action = 2;</code>