docs: public static List<Object> getFieldValues(Iterable<?> collection, final String fieldName, boolean ignoreNull) {
  		return extract(collection, new Editor<Object>() {
  			@Override
  			public Object edit(Object bean) {
  				if (bean instanceof Map) {
  					return ((Map<?, ?>) bean).get(fieldName);
  				} else {
  					return ReflectUtil.getFieldValue(bean, fieldName);
  				}
  			}
  		}, ignoreNull);
  	}