RequestManagementWorkflow_part1.php

<?php

...

    public function handle()
    {
        ...

        // select a set of providers for this request
        $providers = (new SelectProvidersForRequest($this->request))->execute();

        // notify these providers
        foreach ($providers as $provider) {
            (new NotifyProviderOfNewRequest($provider, $this->request))->dispatch();
        }

        ...
    }