private function createOrUpdateLeadsCommand($action, $leads, $lookupField, $args, $returnRaw = false)
    {
        $args['input'] = $leads;
        $args['action'] = $action;

        if (isset($lookupField)) {
            $args['lookupField'] = $lookupField;
        }

        return $this->getResult('createOrUpdateLeads', $args, false, $returnRaw);
    }