docs: def get_elb_config(name, region=None, key=None, keyid=None, profile=None):
      '''
      Get an ELB configuration.
  
      CLI example:
  
      .. code-block:: bash
  
          salt myminion boto_elb.exists myelb region=us-east-1
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
      retries = 30
  
      while retries:
          try:
              lb = conn.get_all_load_balancers(load_balancer_names=[name])
              lb = lb[0]
              ret = {}
              ret['availability_zones'] = lb.availability_zones
              listeners = []
              for _listener in lb.listeners:
                  listener_dict = {}
                  listener_dict['elb_port'] = _listener.load_balancer_port
                  listener_dict['elb_protocol'] = _listener.protocol
                  listener_dict['instance_port'] = _listener.instance_port
                  listener_dict['instance_protocol'] = _listener.instance_protocol
                  listener_dict['policies'] = _listener.policy_names
                  if _listener.ssl_certificate_id:
                      listener_dict['certificate'] = _listener.ssl_certificate_id
                  listeners.append(listener_dict)
              ret['listeners'] = listeners
              backends = []
              for _backend in lb.backends:
                  bs_dict = {}
                  bs_dict['instance_port'] = _backend.instance_port
                  bs_dict['policies'] = [p.policy_name for p in _backend.policies]
                  backends.append(bs_dict)
              ret['backends'] = backends
              ret['subnets'] = lb.subnets
              ret['security_groups'] = lb.security_groups
              ret['scheme'] = lb.scheme
              ret['dns_name'] = lb.dns_name
              ret['tags'] = _get_all_tags(conn, name)
              lb_policy_lists = [
                  lb.policies.app_cookie_stickiness_policies,
                  lb.policies.lb_cookie_stickiness_policies,
                  lb.policies.other_policies
                  ]
              policies = []
              for policy_list in lb_policy_lists:
                  policies += [p.policy_name for p in policy_list]
              ret['policies'] = policies
              return ret
          except boto.exception.BotoServerError as error:
              if error.error_code == 'Throttling':
                  log.debug('Throttled by AWS API, will retry in 5 seconds.')
                  time.sleep(5)
                  retries -= 1
                  continue
              log.error('Error fetching config for ELB %s: %s', name, error.message)
              log.error(error)
              return {}
      return {}