Including ControlRig module in plugin

Hi,

I am trying to create a plugin that would add additional nodes to control rig graph with a custom IK solution. I found RigUnit_TwoBoneIKSimple.h in ControlRig plugin so I added ControlRig as a module dependency in .build.cs

PublicDependencyModuleNames.AddRange(
			new string[]
			{
				"ControlRig"
			}
		);

I did that so that I can access FRigUnit_HighlevelBase from “ControlRig/Units/Highlevel/RigUnit_HighlevelBase.h”. Unfortunately, the ControlRig folder is still not included and compiler cannot find the file. I have tried to rebuild/generate the project file and tried to compile from the editor and directly from Rider but without any success.

Am I missing some crucial step? Will I be able to create new node by simply replicating FRigUnit_TwoBoneIKSimpleTransforms class but with different name and implementation?