runHook(name, node) {
		if (Jsep.hooks[name]) {
			const env = { context: this, node };
			Jsep.hooks.run(name, env);
			return env.node;
		}
		return node;
	}
Run a given hook
@param {string} name
@param {jsep.Expression|false} [node]
@returns {?jsep.Expression}