simplify auth_request even further, so it accepts a Request instance
instead of a function-of-Effect-of-Request. This also allows it to
drop the "headers" argument.
offer a consistent decorator-ish API for the functionality of pure_http
Merge branch 'pure-http-refinements' into service-bound-http
simplify to just use *args and **kwargs so we don't need to care about every arg
Merge branch 'pure-http-refinements' into service-bound-http
Update to the newer pure_http API.