Recursive search for viewport on Godot

gistfile1.txt

func find_viewport(node, recursive_level):
	if node.get_type() == "CanvasItemEditor":
		return node.get_child(1).get_child(0).get_child(1).get_child(1)
	else:
		recursive_level += 1
		if recursive_level > 15:
			return null
		for child in node.get_children():
			var result = find_viewport(child, recursive_level)
			if result != null:
				return result