Created by: Ichimonji10
Tweak the python-prior API bindings, so that they no longer cast lists to tuples when making a POST request with a multipart/form-data content-type. This fixes an interaction with
urllib3.request_encode_body, whose fields parameter expects tuples, not lists.
cc @spacether
See: https://urllib3.readthedocs.io/en/stable/reference/urllib3.request.html
Fix: https://github.com/OpenAPITools/openapi-generator/issues/14012