namespace System.Runtime.Versioning { [AttributeUsage(AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true, Inherited = false)] internal sealed class UnsupportedOSPlatformGuardAttribute : System.Runtime.Versioning.OSPlatformAttribute { public UnsupportedOSPlatformGuardAttribute(string platformName) : base(platformName) { } } }