CIGA is authorized to enter into those contracts or agreements with those banks, insurers, or other financial institutions or parties that it determines are necessary or desirable to improve the security and marketability of, or to manage interest rates or other risks associated with, the bonds issued pursuant to Article 8 (commencing with Section 63049.6) of Chapter 2 of Division 1 of Title 6.7 of the Government Code. Those contracts or agreements may contain an obligation to reimburse, with interest, any of those banks, insurers, or other financial institutions or parties for advances used to pay the purchase price of, or principal or interest on, the bonds or other obligations.