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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_state(self):
 """Reset state about the previous query in preparation for running another query"""

        self._uuid = None
        self._columns = None
        self._rownumber = 0
        # Internal helper state
        self._state = self._STATE_NONE
        self._data = None
        self._columns = None