Unable to fetch campaigns

[vinay-mittal]

I was willing to integrate SendGrid with my app and for that i was thinking of using this gem. But i was unable to find any call, class or method for fetching campaigns. I searched through README but was unable to find anything then i tried looking into code and was still not able to find anything.

Please add functionality for fetching campaigns or if it exists already let me know how to do it.

Thanks,
Vinay