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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 reset(self):
 """Reset to the initial state, clearing the buffer and zeroing count and scanned."""

        self.buffer.clear()
        self._count = 0
        self._scanned = 0
        self._exhausted = False
        self.request.pop("ExclusiveStartKey", None)