static async Task MainAsync()
{
var code = await Authorize();
var patreonApi = new PatreonApi(clientId, clientSecret, redirectURI);
var tokenData = await patreonApi.PerformCodeExchange(code);
patreonApi = new PatreonApi(tokenData.AccessToken);
var fields = new Fields();
fields.AddAllField <User>();
fields.AddAllField <Campaign>();
var includes = new Includes();
includes.Add <User>(x => x.Campaign);
var user = await patreonApi.FetchUser(fields, includes);
Console.ReadLine();
}
