parent_lookup_kwargs raises an attribute error in django-spectacular api docs.

[73VW]

Fix for #311

[dickermoshe]

@alanjds
This check for a swagger request needs to be on the initialize_request too.
I've contributed PR #290 that added it to the get_queryset function.
It seems in needs to be added here as well.
It schema it generates is valid.
Can we get this merged into master

[alanjds]

@dickermoshe looks like your proposal was merged indirectly in meantime. I will close the PR as there is only string quotes changes now. Anyway, thanks for your contribution.

Best regards, Alan.