Я сам не знаю как и что, но оно работает как то

mROA/Implementation/UniversalObjectIdentifier.cs

@@ -0,0 +1,47 @@
+using System;
+
+namespace mROA.Implementation
+{
+#pragma warning disable CS8618, CS9264
+    public struct UniversalObjectIdentifier : IEquatable<UniversalObjectIdentifier>
+    {
+        public int ContextId;
+        public int OwnerId;
+
+        public static UniversalObjectIdentifier Null = new UniversalObjectIdentifier { ContextId = -2, OwnerId = -1 };
+        public override string ToString()
+        {
+            return $"{{ {nameof(ContextId)}: {ContextId}, {nameof(OwnerId)}: {OwnerId} }}";
+        }
+
+        public bool IsStatic => ContextId == -1;
+        
+        public ulong Flat
+        {
+            get
+            {
+                return (ulong)OwnerId << 32 | (uint)ContextId;
+            }
+            set
+            {
+                OwnerId = (int)(value >> 32);
+                ContextId = (int)(value & 0xFFFFFFFF);
+            }
+        }
+
+        public bool Equals(UniversalObjectIdentifier other)
+        {
+            return ContextId == other.ContextId && OwnerId == other.OwnerId;
+        }
+
+        public override bool Equals(object? obj)
+        {
+            return obj is UniversalObjectIdentifier other && Equals(other);
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(ContextId, OwnerId);
+        }
+    }
+}