code: def del_cells(self, name):
          
          if name in self.cells:
              cells = self.cells[name]
              self.cells.del_item(name)
              self.inherit()
              self.model.spacegraph.update_subspaces(self)
  
          elif name in self.dynamic_spaces:
              cells = self.dynamic_spaces.pop(name)
              self.dynamic_spaces.set_update()
  
          else:
              raise KeyError("Cells '%s' does not exist" % name)
  
          NullImpl(cells)
docs: Implementation of cells deletion
  
          ``del space.name`` where name is a cells, or
          ``del space.cells['name']``