src/Helpers/Request/RequestAppHelperProxy.php
protected function proxyWithApp($method, $arguments = [], $position = -1)
    {
        $this->injectVariableToArguments($this->app, $arguments, $position);
        return $this->proxy($method, $arguments);
    }
protected function proxyWithApp($method, $arguments = [], $position = -1)
    {
        $this->injectVariableToArguments($this->app, $arguments, $position);
        return $this->proxy($method, $arguments);
    }
Proxy to Helper with added RequestApplicationInterface parameter at given position
@param string $method
@param array  $arguments
@param int    $position
@return mixed