def _elbv2_load_balancer(self, lookup):
    """
    Args:
      lookup: the friendly name of the V2 elb to look up
    Returns:
      A dict with the load balancer description
    Raises:
      botocore.exceptions.ClientError: no such load-balancer
    """
    client = EFAwsResolver.__CLIENTS['elbv2']
    elbs = client.describe_load_balancers(Names=[lookup])
    # getting the first one, since we requested only one lb
    elb = elbs['LoadBalancers'][0]
    return elb