src/Support/RuleListTrait.php
protected function isImplemented($rule)
    {
        return in_array($rule, $this->clientRules) || in_array($rule, $this->serverRules);
    }
protected function isImplemented($rule)
    {
        return in_array($rule, $this->clientRules) || in_array($rule, $this->serverRules);
    }
Returns if rule is validated using Javascript.

@param $rule
@return bool