is it possible to update dns records with this module? (dynamic dns)

[halphalp]

per the documentation:

dns.providers.porkbun lets Caddy read and manipulate DNS records hosted by this DNS provider.

how would one configure a caddyfile to keep the dns record for a domain updated? the docs use the snippet below, but i have no idea where to place it within my caddyfile:

{
	"api_key": "",
	"api_secret_key": ""
}

[mholt]

I think you want the dynamic DNS module in conjunction with this one.