code: def location(hexgrid_type, coord):
      
      if hexgrid_type == TILE:
          return str(coord)
      elif hexgrid_type == NODE:
          tile_id = nearest_tile_to_node(coord)
          dirn = tile_node_offset_to_direction(coord - tile_id_to_coord(tile_id))
          return '({} {})'.format(tile_id, dirn)
      elif hexgrid_type == EDGE:
          tile_id = nearest_tile_to_edge(coord)
          dirn = tile_edge_offset_to_direction(coord - tile_id_to_coord(tile_id))
          return '({} {})'.format(tile_id, dirn)
      else:
          logging.warning('unsupported hexgrid_type={}'.format(hexgrid_type))
          return None
docs: Returns a formatted string representing the coordinate. The format depends on the
      coordinate type.
  
      Tiles look like: 1, 12
      Nodes look like: (1 NW), (12 S)
      Edges look like: (1 NW), (12 SE)
  
      :param hexgrid_type: hexgrid.TILE, hexgrid.NODE, hexgrid.EDGE
      :param coord: integer coordinate in this module's hexadecimal coordinate system
      :return: formatted string for display