private Triple<ActionWrapper,GameTreeNode,Distribution> best = null;
public BotActionNode(PlayerId botId, GameState gameState,
SearchConfiguration config, Sampler sampler, int tokens, int searchId,
NodeVisitor... visitors) {
super(botId, botId, new CachingNode(gameState), config, searchId,
visitors);
expander = config.getBotNodeExpanderFactory().create(this, tokens, sampler);
}