docs: def get_samples_live(self, sensor_id, last=None):
      """Get recent samples, one sample per second for up to the last 2 minutes.
  
      Args:
        sensor_id (string): hexadecimal id of the sensor to query, e.g.
          ``0x0013A20040B65FAD``
        last (string): starting range, as ISO8601 timestamp
  
      Returns:
        list: dictionary objects containing sample data
      """
      url = "https://api.neur.io/v1/samples/live"
  
      headers = self.__gen_headers()
      headers["Content-Type"] = "application/json"
  
      params = { "sensorId": sensor_id }
      if last:
        params["last"] = last
      url = self.__append_url_params(url, params)
  
      r = requests.get(url, headers=headers)
      return r.json()