In this chapter:
(1) “Credit agreement” means any agreement authorized by a governing body of an issuer in connection with or related to the authorization, issuance, sale, resale, security, exchange, payment, purchase, remarketing, or redemption of a public security, interest on a public security, or both. The term includes any agreement relating to public securities that is defined or described in state law as a “credit agreement” or a “bond enhancement agreement.”
(2) “Issuer” and “public security” have the meanings assigned by Section 1202.001.
(3) “Security agreement” means a resolution, order, ordinance, or agreement that creates a security interest with respect to a public security or a credit agreement.
(4) “Security interest” means a pledge of, lien on, or other interest in taxes, revenue, receipts, funds, or other personal property or fixtures that secures payment or performance of public securities or a credit agreement.