class Tph2 { TPH FGYW id; Tph2(){ super(()); this.id = (TPH FGYX x) -> { return x; }; } TPH FGZD id3(TPH FGZE x){ return this.id.apply Signature: [TPH FGZG, TPH FGZH](x); } Tph2(){ super(()); } }