class Async::Children

def delete(item) 

def delete(item)
	if item.transient?
		@transient_count -= 1
	end
	
	super
end

def finished? 

def finished?
	@size == @transient_count
end

def initialize 

def initialize
	super
	
	@transient_count = 0
end

def insert(item) 

def insert(item)
	if item.transient?
		@transient_count += 1
	end
	
	super
end

def transients?

Does this node have (direct) transient children? 
def transients?
	@transient_count > 0
end