public async Task CreateGame(string playerId)
{
_connectionStore.Add(playerId, Context.ConnectionId);
Game game = _gameRepo.Create();
_gameRepo.AddPlayer(game.Id, playerId);
var options = new JsonSerializerOptions {
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
};
await Clients.Caller.ReceiveGameIsCreated(game);
}