Add adds a proxy to this multi-transport. "id" is a free-form unique identifier for this proxy, except: "id" for WireGuard proxies must be prefixed with [WG] "url" is WireGuard UAPI configuration. For HTTP1 and SOCKS5 proxies, "url" must be of the form: scheme://usr:pwd@domain.tld:port/p/a/t/h?q&u=e
(id, url string)
source not stored for this graph (policy: none)
no outgoing calls