I would like to pass an environment object to a UIViewRepresentable like this:

DrawingUI()
  .environmentObject(toolbarModel)

This toolbarModel has a property called selectedUIColor that I need the UIViewRepresentable to update.

Then I have this:

struct DrawingUI: UIViewRepresentable {
  @EnvironmentObject private var toolbarModel:ToolbarModel

...

let coordinator = Coordinator(!!!!!)

class Coordinator: NSObject, PKToolPickerObserver {
// for some reason I have to have this property
// again because I did not find a way to set the
// same property outside the coordinator
private var toolbarModel:ToolbarModel

private var selectedUIColor:UIColor {
  didSet {
    toolbarModel.selectedUIColor = selectedUIColor
  }
}

init(_ toolbarModel:ToolbarModel) {
  self.toolbarModel = toolbarModel
}

...

func makeCoordinator() -> PencilKitSwiftUI.Coordinator {
  return Coordinator(!!!!!)
}

My problem is: What do I put on the !!!!! parts?