structures: little bit more general, lower-key-caching version of CaseInsensitiveDict
structures: little bit more general, lower-key-caching version of CaseInsensitiveDict

abueesp/requesocks,revolunet/requests,Bluehorn/requests,psf/requests,revolunet/requests,dvska/requesocks,garnaat/requests,msabramo/requests,hph86/requesocks,garnaat/requests