<PackageReference Include="Microsoft.Extensions.FileProviders.Abstractions" Version="10.0.10" />

Microsoft.Extensions.FileProviders.NullChangeToken

public sealed class NullChangeToken : IChangeToken
An empty change token that doesn't raise any change callbacks.
namespace Microsoft.Extensions.FileProviders { public sealed class NullChangeToken : IChangeToken { public static NullChangeToken Singleton { get; } public bool HasChanged { get; } public bool ActiveChangeCallbacks { get; } public IDisposable RegisterChangeCallback(Action<object> callback, object state); } }