sharee.bike-App/TINKLib/CSharp9.cs

// ReSharper disable once CheckNamespace
namespace System.Runtime.CompilerServices
{
#if USCSHARP9
    /// <summary>
    /// Reserved to be used by the compiler for tracking metadata.
    /// This class should not be used by developers in source code.
    /// </summary>
    [EditorBrowsable(EditorBrowsableState.Never)]
    internal static class IsExternalInit
    {
    }
#endif
}