Function api_base 

pub fn api_base(
    kind: ForgeKind,
    git_url: &str,
    api_url: Option<&str>,
) -> Result<String>

The API base for git_url: api_url when set; GitHub’s API for github.com; else https://<host>/api/v1 (Gitea, Forgejo). A plain-HTTP git URL needs an explicit api_url: a token is never sent in clear unless someone wrote that down.