def get_members(self, node_id, group_name):
    describe_groups_request = admin.DescribeGroupsRequest_v0(
        groups=[(group_name)]
    )
    future = self.client.send(node_id, describe_groups_request)
    self.client.poll(timeout_ms=self.timeout, future=future)

    (error_code, group_id, state, protocol_type, protocol, members) = future.value.groups[0]

    if error_code != 0:
        print(
            "Kafka API - RET admin.DescribeGroupsRequest, error_code={}, group_id={}, state={}, protocol_type={}, protocol={}, members_count={}".format(
                error_code, group_id, state, protocol_type, protocol, len(members)))
        exit(1)

    lmembers=[]
    for member in members:
        (member_id, client_id, client_host, member_metadata, member_assignment) = member
        lmembers.append({'member_id': member_id, 'client_id': client_id, 'client_host': client_host})

    return lmembers