Xamarin.CommunityToolkit by Microsoft

<PackageReference Include="Xamarin.CommunityToolkit" Version="1.3.0-compat-alpha3" />

.NET API 360,328 bytes

 AsyncCommand

public class AsyncCommand : BaseAsyncCommand<object, object>, IAsyncCommand, ICommand
public AsyncCommand(Func<Task> execute, Func<object, bool> canExecute = null, Action<Exception> onException = null, bool continueOnCapturedContext = false, bool allowsMultipleExecutions = true)

public AsyncCommand(Func<Task> execute, Func<bool> canExecute, Action<Exception> onException = null, bool continueOnCapturedContext = false, bool allowsMultipleExecutions = true)

public Task ExecuteAsync()