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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 save(cls, dct, filename):
 r""" Saves data from the given dictionary into the specified file. Parameters dct : dictionary A dictionary to save to file, presumably obtained from the ``to_dict`` method of this class. filename : string or path object The filename to store the dictionary. """

        fname = cls._parse_filename(filename=filename, ext='dct')
        dct = sanitize_dict(dct)
        with open(fname, 'wb') as f:
            pickle.dump(dct, f)