PO/Library/PackageCache/com.unity.2d.common@4.0.3/Runtime/InternalBridge/AssemblyInfo.cs

using System.Runtime.CompilerServices;

[assembly: InternalsVisibleTo("Unity.2D.Animation.Runtime")]
[assembly: InternalsVisibleTo("Unity.2D.Animation.Editor")]
[assembly: InternalsVisibleTo("Unity.2D.IK.Editor")]