code: def list_organizations(self):
          
  
          try:
              res = self._send_request('GET', self._org_url, '', 'organizations')
              if res and res.status_code in self._resp_ok:
                  return res.json()
          except dexc.DfaClientRequestFailed:
              LOG.error("Failed to send request to DCNM.")
docs: Return list of organizations from DCNM.