Obter procMDFe

use Suot\Fiscal\Core\Exception\InfrastructureException;
use Suot\Fiscal\Core\ValueObject\Uf;

try {
    $proc = $mdfe->downloadProc()
        ->forOperation('ot-123-mdfe-proc')
        ->inHomologation()
        ->issuerUf(new Uf('RS'))
        ->accessKey($issueResult->accessKey)
        ->withSubmittedXml($issueResult->submittedDocumentXml)
        ->handle();
} catch (InfrastructureException $e) {
    $failure = $e->toFailure('download_proc');
    // Host: alertar; filar retry; não descartar o submittedDocumentXml
    throw $e;
}

if ($proc->isFound()) {
    // Host: persistir $proc->procMdfeXml; source = assembled | distribution
}