ยง 7706. Order on filing instrument settling account. Where an instrument described in section seven thousand seven hundred five of this article has been executed by all of the persons who would be necessary parties in a proceeding under section seven thousand seven hundred one of this article, none of whom is under the disability of infancy or incompetency, one or more of the trustees may present to the court a petition showing the names and post office addresses of all persons interested in the trust, whether or not the trust has been fully executed, that the petitioner has fully accounted and made full disclosure in writing of his administration of the trust to all persons interested, and praying that his intermediate or final account be judicially settled. There shall be filed with the petition the instrument described in section seven thousand seven hundred five of this article. The court may thereupon make an order settling the petitioner's account and discharging the petitioner and sureties on his bond, if any, from any further liability to all persons interested therein.