/// <summary>
/// Gets list of the leaderboards for provided ids.
/// </summary>
/// <param name="leaderboardIds">Set of leaderboard ids.</param>
/// <param name="onSuccess">Action called if operation was successful.</param>
/// <param name="onFailure">Action called if operation failed to complete. Optional.</param>
public void GetLeaderboards(HashSet <string> leaderboardIds, Action <List <Leaderboard> > onSuccess,
Action onFailure = null)
{
Check.Argument.IsNotNull(leaderboardIds, "leaderboardIds", "Leaderboard ids cannot be null");
Check.Argument.IsNotNull(onSuccess, "onSuccess", "Success callback cannot be null");
getSocialImpl.GetLeaderboards(leaderboardIds,
GetLeaderboardsOnSuccessAdapter(onSuccess),
GetLeaderboardOnFailureAdapter(onFailure)
);
}