@startuml
class SelectionManager {
    + {static} getInstance() : SelectionManager
    + GetCurrentSelections() : List<IInteractable>
    + ClearSelection() : void
    + HasOneSelection() : bool
}
class "UnityEvent`1"<T> {
}
MonoBehaviour <|-- SelectionManager
SelectionManager --> "SelectionEvent<IInteractable>" "UnityEvent`1"
@enduml