AsyncClient POST fails when running in a docker container

[cjdev-n-data]

'Request' object has no attribute 'decode'

Hi there, I've noticed an issue with v0.23.0 when using the asynchronous client in a docker container.

Environment:

• python 3.10
• docker base image: python 3.10 OR 3.10-slim
• httpx version: 0.23.0

The basic usage I have is as follows:

async with AsyncClient(verify=self.__ca_certs_path, timeout=120) as client:
                r = await client.post(
                        url=self.__cbm_url,
                        headers={"Content-Type": "application/json"},
                        json={"message": msg, "parse_mode": "markdown"}
                  )

I have tried multiple different methods and scenarios, but the only way I managed to fix this issue is by down-grading the httpx version to 0.20.0

Any ideas why I have run into this issue?