oh dear

mscorlib/System/Runtime/InteropServices/SafeBuffer.cs

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+using System;
+using System.Runtime.ConstrainedExecution;
+using Cpp2IlInjected;
+using Microsoft.Win32.SafeHandles;
+
+namespace System.Runtime.InteropServices
+{
+	/// <summary>Provides a controlled memory buffer that can be used for reading and writing. Attempts to access memory outside the controlled buffer (underruns and overruns) raise exceptions.</summary>
+	// Token: 0x0200058A RID: 1418
+	[Token(Token = "0x200058A")]
+	public abstract class SafeBuffer : SafeHandleZeroOrMinusOneIsInvalid
+	{
+		/// <summary>Obtains a pointer from a <see cref="T:System.Runtime.InteropServices.SafeBuffer" /> object for a block of memory.</summary>
+		/// <param name="pointer">A byte pointer, passed by reference, to receive the pointer from within the <see cref="T:System.Runtime.InteropServices.SafeBuffer" /> object. You must set this pointer to <see langword="null" /> before you call this method.</param>
+		/// <exception cref="T:System.InvalidOperationException">The <see cref="Overload:System.Runtime.InteropServices.SafeBuffer.Initialize" /> method has not been called.</exception>
+		// Token: 0x06002B37 RID: 11063 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x6002B37")]
+		[Address(RVA = "0x2382180", Offset = "0x2380F80", VA = "0x182382180")]
+		[CLSCompliant(false)]
+		[ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
+		public unsafe void AcquirePointer(ref byte* pointer)
+		{
+		}
+
+		/// <summary>Releases a pointer that was obtained by the <see cref="M:System.Runtime.InteropServices.SafeBuffer.AcquirePointer(System.Byte*@)" /> method.</summary>
+		/// <exception cref="T:System.InvalidOperationException">The <see cref="Overload:System.Runtime.InteropServices.SafeBuffer.Initialize" /> method has not been called.</exception>
+		// Token: 0x06002B38 RID: 11064 RVA: 0x00002050 File Offset: 0x00000250
+		[Token(Token = "0x6002B38")]
+		[Address(RVA = "0x2382210", Offset = "0x2381010", VA = "0x182382210")]
+		[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
+		public void ReleasePointer()
+		{
+		}
+
+		// Token: 0x0400194D RID: 6477
+		[FieldOffset(Offset = "0x20")]
+		[Token(Token = "0x400194D")]
+		private bool inited;
+	}
+}