code: def uci(self, move: Move, *, chess960: Optional[bool] = None) -> str:
          
          if chess960 is None:
              chess960 = self.chess960
  
          move = self._to_chess960(move)
          move = self._from_chess960(chess960, move.from_square, move.to_square, move.promotion, move.drop)
          return move.uci()
docs: Gets the UCI notation of the move.
  
          *chess960* defaults to the mode of the board. Pass ``True`` to force
          Chess960 mode.