Sharing Internet via Soft Access Point

I have managed to set up my Wemos D1 R1 as a soft AP connected to internet via WIFI. Then I connected another Wemos D1 R1 as a client to it. However, I'm looking to enable sharing the internet through the AP. As far as I understood from documentation and articles across the web that there is no way to share the internet unless the AP is connected to internet router through Ethernet. Could you please confirm that? Thank You in Advance.

there is a NAT library. see the example