code: def contains(self, items, pad=0):
          
          o = ((items >= self.l-pad) & (items < self.r+pad))
          if len(o.shape) == 2:
              o = o.all(axis=-1)
          elif len(o.shape) == 1:
              o = o.all()
          return o
docs: Test whether coordinates are contained within this tile.
  
          Parameters
          ----------
          items : ndarray [3] or [N, 3]
              N coordinates to check are within the bounds of the tile
  
          pad : integer or ndarray [3]
              anisotropic padding to apply in the contain test
  
          Examples
          --------
          >>> Tile(5, dim=2).contains([[-1, 0], [2, 3], [2, 6]])
          array([False,  True, False], dtype=bool)