code: public static <KType, VType> KTypeVTypeHashMap<KType, VType> from(KType[] keys, VType[] values) {
      if (keys.length != values.length) {
        throw new IllegalArgumentException("Arrays of keys and values must have an identical length.");
      }
  
      KTypeVTypeHashMap<KType, VType> map = new KTypeVTypeHashMap<>(keys.length);
      for (int i = 0; i < keys.length; i++) {
        map.put(keys[i], values[i]);
      }
  
      return map;
    }
docs: Creates a hash map from two index-aligned arrays of key-value pairs.