§ 232. County officers' and county executives' associations. Power is granted each board of supervisors to appropriate and pay annually to the treasurer of the New York state association of counties, and/or to the treasurer of the county executives' association of the state of New York, and/or to the treasurer of the county legislators and supervisors association of New York State, and/or to the treasurer of the New York state association of directors of real property tax services, an amount not exceeding that apportioned and requested as its share of the actual and necessary expenses of maintaining each of said associations in their activities in the promotion of better county government.