def nscanned(self):
        """Extract nscanned or keysExamined counter if available (lazy)."""
        if not self._counters_calculated:
            self._counters_calculated = True
            self._extract_counters()

        return self._nscanned
def nscanned ( self ) : if not self . _counters_calculated : self . _counters_calculated = True self . _extract_counters ( ) return self . _nscanned
Extract nscanned or keysExamined counter if available (lazy).