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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send_event(api_key, event, value1=None, value2=None, value3=None):
 """Send an event to the IFTTT maker channel Parameters: api_key : string Your IFTTT API key event : string The name of the IFTTT event to trigger value1 : Optional: Extra data sent with the event (default: None) value2 : Optional: Extra data sent with the event (default: None) value3 : Optional: Extra data sent with the event (default: None) """


    url = 'https://maker.ifttt.com/trigger/{e}/with/key/{k}/'.format(e=event,
                                                                     k=api_key)
    payload = {'value1': value1, 'value2': value2, 'value3': value3}
    return requests.post(url, data=payload)