async def METHOD_NAME(
    brokername: str,
    loglevel: str | None = None,
    **tractor_kwargs,
) -> bool:
    from piker.service import Services
    from piker.service._util import log  # use service mngr log
    log.info(f'Spawning {brokername} broker daemon')
    brokermod = get_brokermod(brokername)
    dname = f'brokerd.{brokername}'
    extra_tractor_kwargs = getattr(brokermod, '_spawn_kwargs', {})
    tractor_kwargs.update(extra_tractor_kwargs)
    # ask `pikerd` to spawn a new sub-actor and manage it under its
    # actor nursery
    modpath = brokermod.__name__
    broker_enable = [modpath]
    for submodname in getattr(
        brokermod,
        '__enable_modules__',
        [],
    ):
        subpath = f'{modpath}.{submodname}'
        broker_enable.append(subpath)
    portal = await Services.actor_n.start_actor(
        dname,
        enable_modules=_data_mods + broker_enable,
        loglevel=loglevel,
        debug_mode=Services.debug_mode,
        **tractor_kwargs
    )
    # non-blocking setup of brokerd service nursery
    await Services.start_service_task(
        dname,
        portal,
        # signature of target root-task endpoint
        _setup_persistent_brokerd,
        brokername=brokername,
        loglevel=loglevel,
    )
    return True