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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 _sanitise(self):
 """ Convert attributes of type npumpy.float32 to numpy.float64 so that they will print properly. """

        for k in self.__dict__:
            if isinstance(self.__dict__[k], np.float32):  # np.float32 has a broken __str__ method
                self.__dict__[k] = np.float64(self.__dict__[k])