VRC0009: Type is not exposed to Udon

Type is not exposed to Udon.

Example

Code with Diagnostic

using System;

using UdonSharp;

class TestBehaviour0 : UdonSharpBehaviour
{
    private IntPtr _ptr;
            ~~~~~~

    public IntPtr Ptr { get; set; }
           ~~~~~~

    public IntPtr SomeMethod(IntPtr ptr)
           ~~~~~~            ~~~~~~
    {
        IntPtr a = IntPtr.Zero;
        ~~~~~~
        return a;
    }
}

Code with Fix

// NOT YET PROVIDED