Friend assembly allows access to internals from different assembly! (for Unity Editors or unit tests and when using assembly definition files = .asmdefs)

MyInternalClass.cs

/*
 * File "MyInternalClass.cs"
 * in "MyName" assembly (defined by a "MyName.asmdef"):
 */

using System.Runtime.CompilerServices;

// Make this class available to its Unity PropertyDrawer despite being 'internal'
[assembly: InternalsVisibleTo("MyName_Editor")]
namespace my.name {
  internal class MyInternalClass { }
}

MyInternalClassPropertyDrawer.cs

/*
 * File "MyInternalClassPropertyDrawer.cs" (or unit test or whatever)
 * in "MyName_Editor" assembly (defined by a "MyName_Editor.asmdef"):
 */

using UnityEditor;

namespace my.name.editor {
  [CustomPropertyDrawer(typeof(MyInternalClass))]
  internal class MyInternalClassPropertyDrawer : PropertyDrawer { }
}

Is this a way to get access to internal Unity methods?