Function fips_codes::county_by_ids

pub fn county_by_ids(state_id: u8, county_id: u16) -> Option<&'static str>

use fips_codes::county_by_ids;
assert_eq!(county_by_ids(9, 15), Some("Windham County"));
assert_eq!(county_by_ids(9, 2), None);
assert_eq!(county_by_ids(0, 0), None);