{:name :tileset
 :validator
 [:map
  [:tileset/name keyword?]
  [:tiles/width integer?]
  [:tiles/height integer?]
  [:tiles/count integer?]
  [:tiles
   [:sequential
    [:map
     [:tile/id integer?]
     [:tile/width integer?]
     [:tile/height integer?]
     [:tile/src string?]]]]]}