608.455  Waiver of notice.--When, under the provisions of this chapter or under the provisions of the articles of organization or operating agreement of a limited liability company, notice is required to be given to a member of a limited liability company or to a manager of a limited liability company having a manager or managers, a waiver in writing signed by the person or persons entitled to the notice, whether made before or after the time for notice to be given, is equivalent to the giving of notice.