original_string: public function pay(array $params)
      {
          $params['appid'] = $this->app['config']->app_id;
  
          return $this->request($this->wrap('pay/micropay'), $params);
      }
code: public function pay(array $params)
      {
          $params['appid'] = $this->app['config']->app_id;
  
          return $this->request($this->wrap('pay/micropay'), $params);
      }
code_tokens: public function pay ( array $ params ) { $ params [ 'appid' ] = $ this -> app [ 'config' ] -> app_id ; return $ this -> request ( $ this -> wrap ( 'pay/micropay' ) , $ params ) ; }
docstring: Pay the order.
  
  @param array $params
  
  @return \Psr\Http\Message\ResponseInterface|\EasyWeChat\Kernel\Support\Collection|array|object|string
  
  @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException
docstring_tokens: Pay the order .