original_string: public function getRules()
      {
          $rules = empty($this->rules) ? $this->rules($this->request, $this->params) : $this->rules;
          return $this->explodeRules($rules);
      }
code: public function getRules()
      {
          $rules = empty($this->rules) ? $this->rules($this->request, $this->params) : $this->rules;
          return $this->explodeRules($rules);
      }
code_tokens: public function getRules ( ) { $ rules = empty ( $ this -> rules ) ? $ this -> rules ( $ this -> request , $ this -> params ) : $ this -> rules ; return $ this -> explodeRules ( $ rules ) ; }
docstring: get the rules from child class
  @return array
docstring_tokens: get the rules from child class