def METHOD_NAME(duthosts, nbrhosts, duts_interconnects, tbinfo):
    dpg_topo_list = []
    for dut_host in duthosts:
        dpg_topo_list.extend(get_dut_isis_dpg_topo(dut_host, nbrhosts, duts_interconnects, tbinfo))
    return list(dict.fromkeys(dpg_topo_list))