'Synchronously refresh user defined aggregate metadata.
``aggregate`` is a :class:`cassandra.UserAggregateDescriptor`.
See :meth:`~.Cluster.refresh_schema_metadata` for description of ``max_schema_agreement_wait`` behavior'

def refresh_user_aggregate_metadata(self, keyspace, aggregate, max_schema_agreement_wait=None):

    if (not self.control_connection.refresh_schema(target_type=SchemaTargetType.AGGREGATE, keyspace=keyspace, aggregate=aggregate, schema_agreement_wait=max_schema_agreement_wait, force=True)):
        raise DriverException('User    Aggregate    metadata    was    not    refreshed.    See    log    for    details.')
