public async Task <List <MicroService> > GetAsync([NotNull] string service, CancellationToken cancellationToken = default)
{
Check.NotNullOrWhiteSpace(service, nameof(service));
var key = GetCacheKey();
var services = await ServiceCache.GetAsync(key, token : cancellationToken);
if (services == null)
{
await Poll();
}
services = await ServiceCache.GetAsync(key);
return(services);
}