original_string: public function set($key, $data) {
          if ($this->persist) {
              $this->store[$key] = $data;
          }
          return true;
      }
code: public function set($key, $data) {
          if ($this->persist) {
              $this->store[$key] = $data;
          }
          return true;
      }
code_tokens: public function set ( $ key , $ data ) { if ( $ this -> persist ) { $ this -> store [ $ key ] = $ data ; } return true ; }
docstring: Sets an item in the cache
  @param string $key
  @param mixed $data
  @return bool
docstring_tokens: Sets an item in the cache