import asyncio
from kaiheila.application import KaiHeiLaApplication
from kaiheila.application.event.kaiheila import GroupMessage
from graia.broadcast import Broadcast
from kaiheila.application.group import Group, Member

loop = asyncio.get_event_loop()
bcc = Broadcast(loop=loop)
app = KaiHeiLaApplication("你的token", bcc)

@bcc.receiver(GroupMessage)
async def groupevent(
        app: KaiHeiLaApplication,
        message: str,
        group: Group,
        member: Member):
    if message == "hello":
        await app.sendGroupMessage(group, "hello!")

app.launch()