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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 _StopFolderSelectionMethod(self, stop_folder):
 """Create a method to determine which KML folder a stop should go in. Args: stop_folder: the parent folder element for all stops. Returns: A function that should accept a Stop argument and return a tuple of (stop KML folder, pathways KML folder). Given a Stop, we need to determine which folder the stop should go in. In the most basic case, that's the root Stops folder. However, if show_stop_hierarchy is enabled, we put a stop in a separate sub-folder depending on if the stop is a station, a platform, an entrance, or just a plain-old stand-alone stop. This method returns a function that is used to pick which folder a stop stop should go in. It also optionally returns a folder where any line-string connections associated with a stop (eg. to show the pathway between an entrance and a station) should be added. """

    if not self.show_stop_hierarchy:
      return lambda stop: (stop_folder, None)

    # Create the various sub-folders for showing the stop hierarchy
    station_folder = self._CreateFolder(stop_folder, 'Stations')
    platform_folder = self._CreateFolder(stop_folder, 'Platforms')
    platform_connections = self._CreateFolder(platform_folder, 'Connections')
    entrance_folder = self._CreateFolder(stop_folder, 'Entrances')
    entrance_connections = self._CreateFolder(entrance_folder, 'Connections')
    standalone_folder = self._CreateFolder(stop_folder, 'Stand-Alone')

    def FolderSelectionMethod(stop):
      if stop.location_type == transitfeed.Stop.LOCATION_TYPE_STATION:
        return (station_folder, None)
      elif stop.location_type == googletransit.Stop.LOCATION_TYPE_ENTRANCE:
        return (entrance_folder, entrance_connections)
      elif stop.parent_station:
        return (platform_folder, platform_connections)
      return (standalone_folder, None)

    return FolderSelectionMethod