Function osm_is_area::way

pub fn way<X>(tags: &[(&str, &str)], refs: &[X]) -> bool where
    X: PartialEq, 

Returns true if the given way is an area according to Overpass turbo

use osm_is_area;

let tags = vec![
 (r"waterway", r"riverbank")
];
let refs = vec![1, 3, 2, 1];

let is_area = osm_is_area::way(&tags, &refs);

assert_eq!(true, is_area);