Usage of httpx.Client() in order to manage session between API Calls

[jpjoux]

Describe the bug
The code generated is not able to connect through https to a server hosted behind an ALB/proxy by using the same session.
Each API request is done by executing httpx.request(....) and so all requests are session less. Being session less, the load balancer is not able to address the same server between API calls.

To Reproduce
N/A

Expected behavior
Provide into the Client class (client.py) a mean for initializing a session (If you are coming from Requests, httpx.Client() is what you can use instead of requests.Session()) and use this session in all api calls

Currently it is like in API Call

response = httpx.request(
verify=client.verify_ssl,
**kwargs,
)

after (or equivalent), it can be like

response = session.request(
    verify=client.verify_ssl,
    **kwargs,
)

OpenAPI Spec File
N/A

Desktop (please complete the following information):
N/A

Additional context

[emann]

This is a known limitation (currently!) of the generated clients - see #202.