Editor tools for working with persistent UnityEvents.
| AddBoolPersistentListener | Adds a persistent, preset call to the listener. | 
| AddFloatPersistentListener | Adds a persistent, preset call to the listener. | 
| AddIntPersistentListener | Adds a persistent, preset call to the listener. | 
| AddObjectPersistentListener | Adds a persistent, preset call to the listener. | 
| AddPersistentListener | Adds a persistent, call to the listener. Will be invoked with the arguments as defined by the Event and sent from the call location. | 
| AddStringPersistentListener | Adds a persistent, preset call to the listener. | 
| AddVoidPersistentListener | Adds a persistent, preset call to the listener. | 
| RegisterBoolPersistentListener | Modifies the event at the given index. | 
| RegisterFloatPersistentListener | Modifies the event at the given index. | 
| RegisterIntPersistentListener | Modifies the event at the given index. | 
| RegisterObjectPersistentListener | Modifies the event at the given index. | 
| RegisterPersistentListener | Modifies the event at the given index. | 
| RegisterStringPersistentListener | Modifies the event at the given index. | 
| RegisterVoidPersistentListener | Modifies the event at the given index. | 
| RemovePersistentListener | Removes the given function from the event. | 
| UnregisterPersistentListener | Unregisters the given listener at the specified index. |