question: public final String toPGN ( PGNOptions options ) { PgnText pgnText = new PgnText ( ) ; options . exp . pgnPromotions = true ; options . exp . pieceType = PGNOptions . PT_ENGLISH ; pgnTreeWalker ( options , pgnText ) ; return pgnText . getPgnString ( ) ; }
target:  Export game tree in PGN format. 