private function executeCall()
    {
        $call = $this->call;
        list($results, $shouldContinue) = $this->mapResults(
            $call($this->callOptions)
        );

        $this->set(
            $this->resultTokenPath,
            $this->callOptions,
            $this->determineNextResultToken($results, $shouldContinue)
        );

        return $results;
    }