Steam Need a Steam API call that counts total leaderboard entries

Hi. The Steam API has the following function:

int GetLeaderboardEntryCount( SteamLeaderboard_t hSteamLeaderboard );
( )

But there doesn't appear to be an equivalent API call in GameMaker.

I'd like to be able to get the total number of entries in a leaderboard so I can show the page count at the bottom, e.g. "Page 6 / 79".

So please consider this a request for a steam_count_leaderboard_entries() function.

Or if there's a workaround for this, please share. Thank you.