forEach(callbackFn, thisArg) {
		for (const [ruleId, load] of super.entries()) {
			callbackFn.call(thisArg, load(), ruleId, this);
		}
	}
Call a function with each rule.
@param {Function} callbackFn The callback function.
@param {any} [thisArg] The object to pass to `this` of the callback function.
@returns {void}