public static ref T TypeAssert <T>(this main_package.I target)
{
try
{
return(ref ((main_package.I <T>)target).Target);
}
catch (NotImplementedException ex)
{
throw new PanicException($"panic: interface conversion: {target.GetType().FullName} is not {typeof(T).FullName}: missing method {ex.InnerException?.Message}");
}
}
