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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_partial_DOS(self):
 """Return frequency points and partial DOS as a tuple. Projection is done to atoms and may be also done along directions depending on the parameters at run_partial_dos. Returns ------- A tuple with (frequency_points, partial_dos). frequency_points: ndarray shape=(frequency_sampling_points, ), dtype='double' partial_dos: shape=(frequency_sampling_points, projections), dtype='double' """

        warnings.warn("Phonopy.get_partial_DOS is deprecated. "
                      "Use Phonopy.get_projected_dos_dict.",
                      DeprecationWarning)

        pdos = self.get_projected_dos_dict()

        return pdos['frequency_points'], pdos['projected_dos']