revoke_all: Revoke all OAuth tokens in the cache.
Description
Use this function if you think that your token may have been compromised,
e.g. you accidentally uploaded the cache file to github. It's not possible
to automatically revoke all tokens - this function will warn when it can't.
Usage
revoke_all(cache_path = NA)
Arguments
cache_path
Path to cache file. Defaults to .httr-oauth in
current directory.