How we can change the $e^{x}$ in to Meijer G function?

Question

I am new in this group, learning about Meijer G-Function, but I didn't understand, how could I change into $e^{x}$ into G-Function?

$$ e^{x} = G^{1, 0}_{0, 1}\left({\frac {{-}}{{0}}}\, \Big\vert\,^{}_{-x}\right)$$ where $G$ is the Meijer G function.