Summary
	[Pro-Only]
    Adds the specified `callback` to every event with the specified `name`
    and returns the number of events that were found.
    Animancer.AnimancerEvent.GetCurrentParameter``1 will be used to get the callback's parameter.
    
		
	Syntax
	public int AddCallbacks<T>(StringReference name, Action<T> callback)
	Type Parameters
		
	Parameters
		
	Return Value
		
	See Also
	
			- Animancer.AnimancerEvent.Sequence.AddCallback``1(Animancer.StringReference,System.Action{``0})
- Animancer.AnimancerEvent.Sequence.IndexOf(Animancer.StringReference,System.Int32)