namespace System.Runtime.Serialization
{
    [Obsolete("Formatter-based serialization is obsolete and should not be used.", DiagnosticId = "SYSLIB0050", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public class ObjectManager
    {
        [RequiresUnreferencedCode("ObjectManager is not trim compatible because the type of objects being managed cannot be statically discovered.")]
        public void RegisterObject(object! obj, long objectID, SerializationInfo? info, long idOfContainingObj, MemberInfo? member, int[]? arrayIndex);
    }
}