private final Field nodeField;
    private final List children;

    public BasicAntBuilder() {
        // These are used to discard references to tasks so they can be garbage collected
        Field collectorField;
        try {
            nodeField = groovy.ant.AntBuilder.class.getDeclaredField("lastCompletedNode");
            nodeField.setAccessible(true);

		if !params.Contains(needed) {
			out.Insert(needed)
		}
	}
	return out
}

func getParams(n parse.Node) sets.String {
	out := sets.New[string]()
	switch n.Type() {
	case parse.NodeField:
		// Only look at the first identifier. For example, if the action
		// is {{.To.Config.Service}}, this will return "To" as the parameter.
		// That's all we need when looking for well-known params.