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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 clear(self) -> 'Report': """ Clear all user-data stored in this instance and reset it to its originally loaded state :return: The instance that was called for method chaining """

        self.body = []
        self.data = SharedCache()
        self.files = SharedCache()
        self._last_update_time = time.time()
        return self