def reset(self):
        """
        Reset the UniversalDetector and all of its probers back to their
        initial states.  This is called by ``__init__``, so you only need to
        call this directly in between analyses of different documents.
        """
        self.result = {'encoding': None, 'confidence': 0.0, 'language': None}
        self.done = False
        self._got_data = False
        self._has_win_bytes = False
        self._input_state = InputState.PURE_ASCII
        self._last_char = b''
        if self._esc_charset_prober:
            self._esc_charset_prober.reset()
        for prober in self._charset_probers:
            prober.reset()