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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _sliced_list(self, selector):
 """For slice selectors operating on lists, we need to handle them differently, depending on ``skipmissing``. In explicit mode, we may have to expand the list with ``default`` values. """

        if self.skipmissing:
            return self.obj[selector]

        # TODO: can be optimized by observing list bounds
        keys = xrange(selector.start or 0,
                      selector.stop or sys.maxint,
                      selector.step or 1)
        res = []
        for key in keys:
            self._append(self.obj, key, res, skipmissing=False)
        return res