def getparam(video_id, seektime=0, topchat_only=False, channel_id="") -> str:
    """
    Parameter
    ---------
    seektime : int
        unit:seconds
        start position of fetching chat data.
    topchat_only : bool
        if True, fetch only 'top chat'
    """
    return _build(video_id, seektime, topchat_only, channel_id)
Parameter
---------
seektime : int
unit:seconds
start position of fetching chat data.
topchat_only : bool
if True, fetch only 'top chat'
biliup/Danmaku/paramgen/arcparam.py