namespace NUnit.Framework.Constraints { public interface IConstraint : IResolveConstraint { string DisplayName { get; } string Description { get; } object[] Arguments { get; } ConstraintBuilder Builder { get; set; } ConstraintResult ApplyTo<[System.Runtime.CompilerServices.Nullable(2)] TActual>(TActual actual); ConstraintResult ApplyTo<[System.Runtime.CompilerServices.Nullable(2)] TActual>(ActualValueDelegate<TActual> del); ConstraintResult ApplyTo<[System.Runtime.CompilerServices.Nullable(2)] TActual>(Func<TActual> code); } }