private void SetConfiguration(IConfiguration config)
 {
     _cmConf = new CommunityMegaphoneConfiguration {
         Url = config["CommunityMegaphone:Url"]
     };
     _mConf = new MeetupConfiguration {
         Url = config["Meetup:Url"],
         ApiKey = config["Meetup:ApiKey"]
     };
 }
        // private readonly IMemoryCache _cache;

        public MeetupChannel(IHttpService t, MeetupConfiguration c) {
            _transport = t;
            _conf = c;
            // _cache = new MemoryCache(new MemoryCacheOptions());
        }