List specific Leaderboard Users' Records. Each object contains leaderboard's engaged user details such as, Leaderboard ID, User/Group (Name, Current Value, Current Rank, Previous Day Value, and Previous Day Rank). If the leaderbord settings do not specify result to be grouped by attribute then it will also provide User ID, and the User Image ID. To view specific leaderboard settings, use Get Leaderboard (/leaderboard){id}) API.