§ 1120-m. Agreement of the state. The state does hereby pledge to and agree with the holders of any bonds issued by the authority pursuant to this title that the state will not alter or limit the rights hereby vested in the authority to negotiate, purchase, construct, maintain, operate, repair, improve, increase, enlarge, extend, reconstruct, renovate, rehabilitate or dispose of any project or any part or parts thereof, for which bonds of the authority shall have been issued, to establish and collect rates, rents, fees and other charges referred to in this title and to fulfill the terms of any agreement made with or for the benefit of the holders of the bonds or with any public corporation or person with reference to the bondholders, until the bonds, together with the interest thereon, including interest on any unpaid installments of interest, and all costs and expenses in connection with any action or proceeding by or on behalf of such holders, are fully met and discharged. The authority is authorized to include this pledge and agreement of the state in any agreement with the bondholders.