<PackageReference Include="NETStandard.Library" Version="2.0.0-preview1-25301-01" />

System.Runtime.CompilerServices.AsyncTaskMethodBuilder

public struct AsyncTaskMethodBuilder
public Task Task { get; }

public void AwaitOnCompleted<TAwaiter, TStateMachine>(ref TAwaiter awaiter, ref TStateMachine stateMachine) where TAwaiter : INotifyCompletion where TStateMachine : IAsyncStateMachine

public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(ref TAwaiter awaiter, ref TStateMachine stateMachine) where TAwaiter : ICriticalNotifyCompletion where TStateMachine : IAsyncStateMachine

public void SetException(Exception exception)

public void SetResult()

public void SetStateMachine(IAsyncStateMachine stateMachine)

public void Start<TStateMachine>(ref TStateMachine stateMachine) where TStateMachine : IAsyncStateMachine