lua.wgists.get
The http task must be running and this will block waiting on results.
Get a gist, see https://docs.github.com/en/rest/gists
opts.gid
Must be set to the gist id
opts.token
Optional token to read this gist
opts.baseurl
Can be used to overide the default of "https://api.github.com" which is set in wgists.baseurl and can also be changed globally there.