TypeError: AsyncConsumer.__call__() отсутствует 1 обязательный позиционный аргумент: 'send'

consumers.py

импорт json from channels.generic.websocket import AsyncWebsocketConsumer

class ChatRoomConsumer(AsyncWebsocketConsumer): async def connect(self): self.room_name= self.scope['url_route']['kwargs']['room_name']. self_room_group_name='chat_%s' % self.room_name

    await self.channel_layer.group_add (
        self.room_group_name,
        self.channel_name
)

    await self.accept()

    await self.channel_layer.group_send(
        self.room_group_name,
        {
                'type':'tester_message',
                'tester':'Hello world',
        }
    )
async def tester_message(self,event):
    tester =event['tester']
    await self.send(text_data=json.dumps({
        'tester':tester,

}))
async def disconnect(self, code_close):
    await self.channel_layer.group_discard(
        self.room_group_name,
        self.channel_name
    )

pass

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