def METHOD_NAME(self):
    by_value = self._d['a']['x', : 2.5 * sc.units.dimensionless]
    by_index = self._d['a']['x', :2]
    assert sc.identical(by_value, by_index)
    by_value = self._d['x', : 2.5 * sc.units.dimensionless]
    by_index = self._d['x', :2]
    assert sc.identical(by_value, by_index)