public function getCharityOrgRequest($charity_org_id, $x_ebay_c_marketplace_id)
    {
        // Verify the required parameter 'charity_org_id' is set.
        if ($charity_org_id === null || (\is_array($charity_org_id) && count($charity_org_id) === 0)) {
            throw new \InvalidArgumentException('Missing the required parameter $charity_org_id when calling getCharityOrg');