Attribute named client end up in 2 arguments named client

[truenicoco]

Example generated output from mattermost openapi shema:

def sync_detailed(
    team_id: str,
    *,
    client: Client,
    client_version: str,
    locale: Union[Unset, None, str] = UNSET,
    client: str,  # nope, client was already used before
) -> Response[Union[Any, List["Notice"]]]:

[dbanty]

We probably need to special-case client and always append location (like we do for duplicate parameters)