Grpc.Core.GrpcEnvironment.ShutdownChannelsAsync C# (CSharp) Method

        public static Task ShutdownChannelsAsync()
        {
            HashSet<Channel> snapshot = null;
            lock (staticLock)
            {
                snapshot = new HashSet<Channel>(registeredChannels);
            }
            return Task.WhenAll(snapshot.Select((channel) => channel.ShutdownAsync()));
        }

 /// <summary>
 /// Handler for AppDomain.DomainUnload, AppDomain.ProcessExit and AssemblyLoadContext.Unloading hooks.
 /// </summary>
 private static void HandleShutdown()
 {
     GrpcEnvironment.ShutdownChannelsAsync().Wait();
 }