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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 get_appliance_event_after_time(self, location_id, since, per_page=None, page=None, min_power=None):
 """Get appliance events by location Id after defined time. Args: location_id (string):
 hexadecimal id of the sensor to query, e.g. ``0x0013A20040B65FAD`` since (string):
 ISO 8601 start time for getting the events that are created or updated after it. Maxiumim value allowed is 1 day from the current time. min_power (string):
 The minimum average power (in watts) for filtering. Only events with an average power above this value will be returned. (default: 400) per_page (string, optional):
 the number of returned results per page (min 1, max 500) (default: 10) page (string, optional):
 the page number to return (min 1, max 100000) (default: 1) Returns: list: dictionary objects containing appliance events meeting specified criteria """

    url = "https://api.neur.io/v1/appliances/events"

    headers = self.__gen_headers()
    headers["Content-Type"] = "application/json"

    params = {
      "locationId": location_id,
      "since": since
    }
    if min_power:
      params["minPower"] = min_power
    if per_page:
      params["perPage"] = per_page
    if page:
      params["page"] = page
    url = self.__append_url_params(url, params)

    r = requests.get(url, headers=headers)
    return r.json()