<PackageReference Include="Nito.AsyncEx.Coordination" Version="1.0.2" />

Nito.AsyncEx.AsyncLazyFlags

public enum AsyncLazyFlags
Flags controlling the behavior of AsyncLazy<T>.
namespace Nito.AsyncEx { public enum AsyncLazyFlags { None = 0, ExecuteOnCallingThread = 1, RetryOnFailure = 2 } }