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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 get_paged_slice(self, column_family, range, start_column, consistency_level):
 """ returns a range of columns, wrapping to the next rows if necessary to collect max_results. Parameters: - column_family - range - start_column - consistency_level """

    self._seqid += 1
    d = self._reqs[self._seqid] = defer.Deferred()
    self.send_get_paged_slice(column_family, range, start_column, consistency_level)
    return d