ZfcRbac\Assertion\AssertionPluginManager::validate PHP Method

    public function validate($plugin)
    {
        if ($plugin instanceof AssertionInterface) {
            return;
            // we're okay
        }
        throw new Exception\RuntimeException(sprintf('Assertions must implement "ZfcRbac\\Assertion\\AssertionInterface", but "%s" was given', is_object($plugin) ? get_class($plugin) : gettype($plugin)));
    }