def __init__(self, lavalink, player):
if not issubclass(player, BasePlayer):<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>self.lavalink = lavalink<EOL>self._player = player<EOL>self._players = {}<EOL>
Instantiates a Player Manager.

:param lavalink:
    Must be a lavalink.Client object.
:param player:
    Must implement lavalink.BasePlayer.