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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 update(self):
 """Update the current GPS location."""

        self._controller.update(self._id, wake_if_asleep=False)
        data = self._controller.get_drive_params(self._id)
        if data:
            self.__longitude = data['longitude']
            self.__latitude = data['latitude']
            self.__heading = data['heading']
        if self.__longitude and self.__latitude and self.__heading:
            self.__location = {'longitude': self.__longitude,
                               'latitude': self.__latitude,
                               'heading': self.__heading}