oh dear

mscorlib/System/Collections/Generic/SByteEnumEqualityComparer.cs

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+using System;
+using System.Runtime.Serialization;
+using Cpp2IlInjected;
+
+namespace System.Collections.Generic
+{
+	// Token: 0x02000606 RID: 1542
+	[Token(Token = "0x2000606")]
+	[Serializable]
+	internal sealed class SByteEnumEqualityComparer<T> : EnumEqualityComparer<T>, ISerializable where T : struct
+	{
+		// Token: 0x06002EE5 RID: 12005 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x6002EE5")]
+		public SByteEnumEqualityComparer()
+		{
+		}
+
+		// Token: 0x06002EE6 RID: 12006 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x6002EE6")]
+		public SByteEnumEqualityComparer(SerializationInfo information, StreamingContext context)
+		{
+		}
+
+		// Token: 0x06002EE7 RID: 12007 RVA: 0x00018918 File Offset: 0x00016B18
+		[Token(Token = "0x6002EE7")]
+		[Address(Slot = "9")]
+		public override int GetHashCode(T obj)
+		{
+			return 0;
+		}
+	}
+}