gistfile1.txt

using Microsoft.FeatureManagement;

class Program
{
    static void Main()
    {
        IFeatureManager featureManager = null;
        if (featureManager.IsEnabledAsync(nameof(WidgetFeatureFlags.FeatureToggleABC)).Result)
        {
            Console.WriteLine("Running task with new toggle");
        }
    }
}

public enum WidgetFeatureFlags
{
    FeatureToggleABC
}