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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 select_as_coordinates( self, key, where=None, start=None, stop=None, **kwargs):
 """ return the selection as an Index Parameters key : object where : list of Term (or convertible) objects, optional start : integer (defaults to None), row number to start selection stop : integer (defaults to None), row number to stop selection """

        where = _ensure_term(where, scope_level=1)
        return self.get_storer(key).read_coordinates(where=where, start=start,
                                                     stop=stop, **kwargs)