oh dear

mscorlib/System/Runtime/CompilerServices/StringFreezingAttribute.cs

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+using System;
+using Cpp2IlInjected;
+
+namespace System.Runtime.CompilerServices
+{
+	/// <summary>Deprecated. Freezes a string literal when creating native images using the Ngen.exe (Native Image Generator). This class cannot be inherited.</summary>
+	// Token: 0x0200055F RID: 1375
+	[Token(Token = "0x200055F")]
+	[AttributeUsage(AttributeTargets.Assembly)]
+	[Serializable]
+	public sealed class StringFreezingAttribute : Attribute
+	{
+		/// <summary>Initializes a new instance of the <see cref="T:System.Runtime.CompilerServices.StringFreezingAttribute" /> class.</summary>
+		// Token: 0x06002A79 RID: 10873 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x6002A79")]
+		[Address(RVA = "0x4093D0", Offset = "0x4081D0", VA = "0x1804093D0")]
+		public StringFreezingAttribute()
+		{
+		}
+	}
+}