1. “Treasurer” means:
(a) The de facto or de jure county treasurer, city treasurer, town treasurer or treasurer of any district, or his or her successor in functions, if any.
(b) The county treasurer in the case of any municipality (other than a county) which has no treasurer and for which the county treasurer is required or authorized by law to be the official custodian of the moneys of such municipality, or his or her successor in functions, if any.
2. “Treasurer” may mean the county treasurer if the governing body of the municipality (other than a county) expressly so provides in any instrument or other proceedings hereunder, or his or her successor in functions, if any.