public function transform(Tokens $tokens)
    {
        foreach ($this->items as $transformer) {
            foreach ($tokens as $index => $token) {
                $transformer->process($tokens, $token, $index);
            }
        }
    }
public function transform(Tokens $tokens)
    {
        foreach ($this->items as $transformer) {
            foreach ($tokens as $index => $token) {
                $transformer->process($tokens, $token, $index);
            }
        }
    }
public function transform ( Tokens $ tokens ) { foreach ( $ this -> items as $ transformer ) { foreach ( $ tokens as $ index => $ token ) { $ transformer -> process ( $ tokens , $ token , $ index ) ; } } }
Transform given Tokens collection through all Transformer classes.

@param Tokens $tokens Tokens collection
Transform given Tokens collection through all Transformer classes .