public function configureExistingCustomDimension($idDimension, $name, $active, array $optional = [])
    {
        return $this->_request('CustomDimensions.configureExistingCustomDimension', [
            'idDimension' => $idDimension,
            'name' => $name,
            'active' => $active,
        ], $optional);
    }