def cell_label(self, cell, delim=" "):
"""
Returns a label for a cell. Interaction cells (represented as tuple
of strings) are joined by ``delim``.
"""
return _data.cellname(cell, delim=delim)
def cell_labels(self, delim=" "):
"""
Returns a list of all cell names as strings.
delim : str
delimiter to join interaction cell names
"""
return [_data.cellname(cell, delim) for cell in self.cells]
