Whenever the commission shall find it necessary to insure or guarantee the payment of all or a part of the principal or interest of any series of bonds, it may enter into an agreement to place under trust indenture or agree to deposit in a trust fund moneys now or hereafter appropriated, to guarantee and insure the payment of the interest on and principal of the bonds. From and with moneys thus appropriated, the commission may guarantee or insure, or agree to pay, or pay the interest on and principal of the bonds. The appropriation of such funds, and the use thereof by the commission to guarantee or insure the payment of any of its bonds, shall not be construed to be pledging the credit of the state of North Dakota nor the guaranteeing by the state of any bonds. The commission may also enter into an agreement with a private bond insurer or with a bank or other credit enhancement provider for bond insurance, a guaranty, a letter of credit, or any other credit enhancement that the commission may find to be advantageous or necessary to insure or guarantee the payment of the interest on or the principal of the bonds. The cost of any credit enhancement may be paid with bond proceeds or other funds available for that purpose.