original_string: public function release() {
          $this->released = true;
          if (empty($this->factory)) {
              return false;
          }
          $result = $this->factory->release_lock($this);
          // Release any held references to the factory.
          unset($this->factory);
          $this->factory = null;
          $this->key = '';
          return $result;
      }
code: public function release() {
          $this->released = true;
          if (empty($this->factory)) {
              return false;
          }
          $result = $this->factory->release_lock($this);
          // Release any held references to the factory.
          unset($this->factory);
          $this->factory = null;
          $this->key = '';
          return $result;
      }
code_tokens: public function release ( ) { $ this -> released = true ; if ( empty ( $ this -> factory ) ) { return false ; } $ result = $ this -> factory -> release_lock ( $ this ) ; // Release any held references to the factory. unset ( $ this -> factory ) ; $ this -> factory = null ; $ this -> key = '' ; return $ result ; }
docstring: Release this lock
  @return bool
docstring_tokens: Release this lock