Revenue agreement, as the term is used in this chapter, is any written agreement between a municipality and another person, firm, limited liability company, corporation, or governmental entity with respect to a project whereby such other person, firm, limited liability company, corporation, or governmental entity agrees to pay to the municipality or to its order amounts sufficient at all times to pay when due the principal of, premium, if any, and interest on all bonds issued by the municipality with respect to that project. A revenue agreement includes, but is not limited to, a lease, a direct or installment sale contract, or a loan agreement.
SDCL 9-54-3.1