code: public static <K, V> RubyHash<K, V> rh(Map<K, V> map) {
      return newRubyHash(map);
    }
docs: Creates a {@link RubyHash} by given Map.
  
  @param <K>
  the type of the key elements
  @param <V>
  the type of the value elements
  @param map
  any Map
  @return {@link RubyHash}