Autotask always return events is not iterable when connect with Sentinel

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:computer: Environment

I'm using openzeppelin defender template

:memo:Details

I create an autotaks that connect with sentinel by the following code:

exports.handler = async function(payload) {
  const conditionRequest = payload.request.body;
  const matches = [];
  const events = conditionRequest.events;
  for(const evt of events) {

    // add custom logic for matching here

    // metadata can be any JSON-marshalable object (or undefined)
    matches.push({
       hash: evt.hash,
       metadata: {
        "id": "customId",
        "timestamp": new Date().getTime(),
        "numberVal": 5,
        "nested": { "example": { "here": true } }
       }
    });
  }
  return { matches }
}

i copy these codes from https://docs.openzeppelin.com/defender/sentinel#example_autotask_condition
But when sentinel trigger the autotask always throw error that events can not be loop
but i try with sentinel webhook, it works
:1234: Code to reproduce