class ParamMap extends CollectionMap<Object, Object> {

	public ParamMap filter(String...patterns){
		LangUtils.filterMap(this, patterns);
		return this;
	}

	public  ParamMap();
	public  ParamMap(Map<Object, Collection<Object>> map);
	public  ParamMap(String paramStr);
	public  ParamMap(String paramStr, Map<Object, Collection<Object>> map);

}