original_string: public function registerAbility($ability, $callback)
      {
          $this->abilities->put($ability, $this->makeAbilityCallback($callback));
      }
code: public function registerAbility($ability, $callback)
      {
          $this->abilities->put($ability, $this->makeAbilityCallback($callback));
      }
code_tokens: public function registerAbility ( $ ability , $ callback ) { $ this -> abilities -> put ( $ ability , $ this -> makeAbilityCallback ( $ callback ) ) ; }
docstring: register ability to access.
  
  @param string $ability
  @param string|\Closure $callback
docstring_tokens: register ability to access .