code: def getKnownPlayers(reset=False):
      
      global playerCache
      if not playerCache or reset:
          jsonFiles = os.path.join(c.PLAYERS_FOLDER, "*.json")
          for playerFilepath in glob.glob(jsonFiles):
              filename = os.path.basename(playerFilepath)
              name = re.sub("^player_", "", filename)
              name = re.sub("\.json$",  "", name)
              player = PlayerRecord(name)
              playerCache[player.name] = player
      return playerCache
docs: identify all of the currently defined players