net10.0-windows7.0 
namespace System.ServiceModel
{
    public abstract class ClientBase<TChannel> : IAsyncDisposable, IDisposable, ICommunicationObject
        where TChannel, class
    {
        public Task CloseAsync();
    }
}
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Reference this API
.NET
8.09.010.0
Information specific to net10.0
Platforms This API is only available when you target a specific platform:
Windows
7.0
Information specific to net10.0-windows7.0
Assembly

System.ServiceModel.Primitives , Version=8.1.2.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

Your project needs a package reference to System.ServiceModel.Primitives.

Package System.ServiceModel.Primitives (8.1.2) net8.0
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API