Microsoft.AspNet.SignalR.OwinEnvironmentExtensions.GetShutdownToken C# (CSharp) Method

        internal static CancellationToken GetShutdownToken(this IDictionary<string, object> env)
        {
            object value;
            return env.TryGetValue(OwinConstants.HostOnAppDisposing, out value)
                && value is CancellationToken
                ? (CancellationToken)value
                : default(CancellationToken);
        }