Cleanup Method
Starts a background cleanup operation to remove unused files from the cache.
Syntax
Remarks
This method starts a cleanup operation to remove unused files from the cache. Files used earlier than MaxAge hours ago will be removed (passing 0 for will cause all files to be removed).
The cleanup operation is performed asynchronously in a background thread, so this method returns immediately. To cancel a cleanup operation, use the CancelCleanup method.