A. When it is not impracticable for all of the shareholders, partners, or members of a corporation or unincorporated association to join or to be joined as parties to a derivative action to enforce a right of the corporation or unincorporated association which it refuses to enforce, such action shall not be maintained as a class action. Instead, all of the shareholders, partners, or members who refuse or fail to join as plaintiffs in such an action shall be joined as defendants.B. Derivative actions governed by this Article shall be subject to Articles 614 and 615.