text: from floodsystem import geo
  from floodsystem import stationdata
  def run():
      stations = stationdata.build_station_list()
      centre = 52.2053, 0.1218
      r = 10
      closest_stations = geo.stations_within_radius(stations, centre, r)
  
      closest_stations.sort()
      print(closest_stations)
  
  if __name__ == "__main__":
      run()