Parses config file for the OSPF proc ID

           Args:
               config(str):  Running configuration
           Returns:
               dict: key: ospf_process_id (int)

def _parse_ospf_process_id(self, config):
        """Parses config file for the OSPF proc ID

           Args:
               config(str):  Running configuration
           Returns:
               dict: key: ospf_process_id (int)
        """
        match = re.search(r'^router ospf (\d+)', config)
        return dict(ospf_process_id=int(match.group(1)))