STAT_NAME - This value should be a specific stat or custom stat tracker name. For example BLOCK_BREAK, BLOCK_PLACE, or a custom tracker like BLOCK_BREAK::OBSIDIAN
POSITION - This value indicates the leaderboard position you want to list. The value should be between 1 - N where N is the total number of players scoring in this leaderboard. If no value is present or the position has no player in it, it will return a configurable empty placeholder.