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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_stddevs(self, C, stddev_types, num_sites):
 """ Return standard deviations as defined in tables below """

        assert all(stddev_type in self.DEFINED_FOR_STANDARD_DEVIATION_TYPES
            for stddev_type in stddev_types)
        stddevs = [np.zeros(num_sites) + C['SigmaTot'] for _ in stddev_types]
        return stddevs