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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 load(cls, filename):
 r""" Load data from the specified file into a Python dictionary Parameters filename : string The path to the file to be opened Notes ----- This returns a Python dictionary which can be converted into OpenPNM objects using the ``from_dict`` method of this class. """

        fname = cls._parse_filename(filename)
        with open(fname, 'rb') as f:
            dct = pickle.load(f)
        return dct