How to return array of dictionary in a serverless python function

I was trying to build a function which can return array of dictionaries instead of only one dictionary as per the below tutorial https://github.com/digitalocean/sample-functions-python-jokes I can return

import pyjokes

def main(args):
  joke = pyjokes.get_joke()
  return {
    'body': {
      'response_type': 'in_channel',
      'text': joke
    }
  }

I get this error

{
  "result": {
    "error": "The function did not return a dictionary."
  },
  "size": 54,
  "status": "action developer error",
  "success": false
}

I need something like

return [{
    'body': {
      'response_type': 'test1',
      'text': 'joke'
    }
  },
  {
    'body': {
      'response_type': 'test2',
      'text': 'no-joke'
    }
  }]

is this possible with serverless functions?