api_client parameter ignored and overwritten with default_client

[bryfry]

cloudconvert-python/cloudconvert/resource.py

Line 117 in 584c7e2

api_client = default_client()

All of these methods (List, Find, Delete, Wait, Show, Create) have a similar api_client = default_client() assignment which overrides any provided api_client parameters.

As this library is currently written it seems impossible to call any of these methods with a non-default client.

Also: I do not want to use the global __client__ variable as I am trying to wrap the cloudconvert library into a more specific use-case library.

[BryceStevenWilley]

Also running into this issue. If I'm reading the source correctly, it's also just making a new default client everytime one of List, Find, etc. is used, which isn't great.

I'd consider making a PR if that would help. Would replacing those api_client = default_client() calls with something akin to api_client = get_existing_client() or default_client() be an acceptable fix?