public void SetConditionsToken(TConditions node)
        {
            if (_conditions_token_ != null)
            {
                _conditions_token_.Parent(null);
            }

            if (node != null)
            {
                if (node.Parent() != null)
                {
                    node.Parent().RemoveChild(node);
                }

                node.Parent(this);
            }

            _conditions_token_ = node;
        }