InterpolatedStringHandlerAttribute
Indicates the attributed type is to be used as an interpolated string handler.
using System.Diagnostics.CodeAnalysis;
namespace System.Runtime.CompilerServices
{
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct, AllowMultiple = false, Inherited = false)]
[ExcludeFromCodeCoverage]
internal sealed class InterpolatedStringHandlerAttribute : Attribute
{
}
}