This code is pushed to ACME.SH repository as and additional dnsapi module for Let's Encrypt SSL Certificate management.
Make you sure have acme.sh installed.
Create API key on Arvan Cloud and export the following environment variable:
export ARVAN_API_KEY="SAMPLE-2e2d-51ef-9c8c-bf113b59be0d"
Run acme.sh to issue your SSL Certificate:
acme.sh --issue -d yourdomain.tld --dns dns_arvandcdn
Note: You can find dns_arvancdn.sh inside [acme.sh installation directory]/dnsapi.