/// <summary>Assigns event listener of specified event type.
/// To stop listening events use <see cref="muteEvent(Delegate, EPEvents)"/> method.
/// Those methods allow you to listen for <see cref="EP{T}"/> using <see cref="EP"/> base class, were T is "unknown".
/// If you work on specfic type of <see cref="EP{T}"/>, use standard events aproach.</summary>
/// <param name="l">Delegate to be invoked when event occurs.
/// This delegeate must by of <see cref="eventType"/> type. Use <see cref="createEventHandler(object, string)"/> to create delegate from any applicable method.
/// Basically this is na <see cref="EPEventHandler{T}"/> where T is the type of extended property.</param>
/// <param name="type">Type of event on wich to invoke given delegate.</param>
public abstract void listenEvent(Delegate epEventHandler, EPEvents type);
/// <summary>Remove event listener of specified event type.
/// To start listening events use <see cref="listenEvent(Delegate, EPEvents)"/> method.
/// Those methods allow you to listen for <see cref="EP{T}"/> using <see cref="EP"/> base class, were T is "unknown".
/// If you work on specfic type of <see cref="EP{T}"/>, use standard events aproach.</summary>
/// <param name="l">Delegate to be invoked when event occurs.
/// This delegeate must by of <see cref="eventType"/> type.
/// Basically this is na <see cref="EPEventHandler{T}"/> where T is the type of extended property.</param>
/// <param name="type">Type of event on wich to invoke given delegate.</param>
public abstract void muteEvent(Delegate ePEventHandler, EPEvents type);
