human
I wrote the below code

    import logging
    import zmq
    import zmq_tools
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    gaze_pub = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    pupil_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('pupil',))
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('notify',))
    poller = zmq.Poller()
    poller.register(pupil_sub.socket)
    poller.register(notify_sub.socket)
    logging.getLogger('OpenGL').setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    logger = logging.getLogger(__name__)
    from file_methods import Persistent_Dict
    from methods import delta_t, get_system_info
    from version_utils import VersionFormat
    import audio
    from uvc import get_time_monotonic
    import pupil_detectors
    del pupil_detectors
    from plugin import Plugin, Plugin_List, import_runtime_plugins
    from calibration_routines import calibration_plugins, gaze_mapping_plugins
    from pupil_remote import Pupil_Remote
    from pupil_groups import Pupil_Groups
    logger.info('Application    Version:    {}'.format(version))
    logger.info('System    Info:    {}'.format(get_system_info()))
    g_pool = Global_Container()
    g_pool.app = 'service'
    g_pool.user_dir = user_dir
    g_pool.version = version
    g_pool.get_now = get_time_monotonic
    g_pool.zmq_ctx = zmq_ctx
    g_pool.ipc_pub = ipc_pub
    g_pool.ipc_pub_url = ipc_pub_url
    g_pool.ipc_sub_url = ipc_sub_url
    g_pool.ipc_push_url = ipc_push_url
    g_pool.eyes_are_alive = eyes_are_alive
    g_pool.timebase = timebase
    def get_timestamp():
        return (get_time_monotonic() - g_pool.timebase.value)
    g_pool.get_timestamp = get_timestamp
    runtime_plugins = import_runtime_plugins(os.path.join(g_pool.user_dir, 'plugins'))
    user_launchable_plugins = ([Pupil_Groups, Pupil_Remote] + runtime_plugins)
    plugin_by_index = (((runtime_plugins +...

What's a good function header?

Here's a good function header?
assistant
#Here's a good function header.

def service(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url, ipc_push_url, user_dir, version):