@Override
		public void serialize(List<User> followers, JsonGenerator generator, SerializerProvider provider) throws IOException {
			List<User> userBaseInfoList = followers.stream()
				.map(User::getUserBaseInfo)
				.collect(toList());
			generator.writeObject(userBaseInfoList);
		}
string representation of User object.

@return User object information String.
ngrinder-core/src/main/java/org/ngrinder/model/User.java