UnityEngine.Events.UnityEvent.GetDelegate C# (CSharp) Method

        private static BaseInvokableCall GetDelegate(UnityAction action)
        {
            return new InvokableCall(action);
        }

 /// <summary>
 ///   <para>Add a non persistent listener to the UnityEvent.</para>
 /// </summary>
 /// <param name="call">Callback function.</param>
 public void AddListener(UnityAction call)
 {
     this.AddCall(UnityEvent.GetDelegate(call));
 }