anchor.diff:  
   # Amount of time a token should remain valid (in seconds).
   # (integer value)
  -#expiration=3600
  +expiration=3600
   
   # Controls the token construction, validation, and revocation
   # operations. Core providers are
  
positive.code: 
  # Time to cache tokens (in seconds). This has no effect unless
  # global and token caching are enabled. (integer value)
  #cache_time=<None>
  
  # Revoke token by token identifier.  Setting revoke_by_id to
  # True enables various forms of enumerating tokens, e.g. `list
  
negative.code: provider = keystone.token.providers.pki.Provider
  
  # Keystone Token persistence backend driver. (string value)
  driver=keystone.token.backends.memcache.Token
  
  # Toggle for token system cacheing. This has no effect unless
  # global caching is enabled. (boolean value)
  caching=true
  
  # Time to cache the revocation list and the revocation events
  # if revoke extension is enabled (in seconds). This has no
  