Publishing Message - NOT_IMPLEMENTED - immediate=true

[Friendliness]

Hey there,

When trying to use the immediate flag when publishing a message I seem to be getting an error: NOT_IMPLEMENTED - immediate=true
Is the immediate flag indeed not implemented or am I perhaps doing something wrong?

aio-pika version: 9.4.0

This is a snippet of how I'm attempting to send the message:

message = Message(body=json_as_bytes, delivery_mode=DeliveryMode.
await self.channel.default_exchange.publish(message, routing_key=queue_name, timeout=20, immediate=True)

[mosquito]

It seems that the broker is not processing this flag as well. I recommend that you see the answer in your broker's documentation.