docs: def direction_to_tile(from_tile_id, to_tile_id):
      """
      Convenience method wrapping tile_tile_offset_to_direction. Used to get the direction
      of the offset between two tiles. The tiles must be adjacent.
  
      :param from_tile_id: tile identifier, int
      :param to_tile_id: tile identifier, int
      :return: direction from from_tile to to_tile, str
      """
      coord_from = tile_id_to_coord(from_tile_id)
      coord_to = tile_id_to_coord(to_tile_id)
      direction = tile_tile_offset_to_direction(coord_to - coord_from)
      # logging.debug('Tile direction: {}->{} is {}'.format(
      #     from_tile.tile_id,
      #     to_tile.tile_id,
      #     direction
      # ))
      return direction