Grid/Grid.php
public function addExport(ExportInterface $export)
    {
        if ($export->getRole() === null || $this->securityContext->isGranted($export->getRole())) {
            $this->exports[] = $export;
        }

        return $this;
    }
public function addExport(ExportInterface $export)
    {
        if ($export->getRole() === null || $this->securityContext->isGranted($export->getRole())) {
            $this->exports[] = $export;
        }

        return $this;
    }
Adds Export.

@param ExportInterface $export

@return self