"Municipality" includes cities, towns, and school districts.
"Unfunded indebtedness" includes all general obligations and indebtedness except bonds and except indebtedness which is payable from special assessments against benefited property.
"Year" means calendar year, except that it means "fiscal year" in the case of any school district or city as to which both of the following conditions exist:
(1) in the case of a city, the charter or law under which it is organized provides for a fiscal year differing from the calendar year; in the case of a school district, the books of account are kept on the basis of a fiscal year differing from the calendar year;
(2) the governing body of such city or school district shall have adopted a resolution determining that its operation under sections 471.71 to 471.83 shall be on the basis of such fiscal year and giving the date of the beginning of that year.