The default interval this module checks for files in directories when
Register a directory to monitor with a callback that is called every time a previously unseen file is seen. If a file is deleted and seen to be gone, then the file is available for being seen again in the future.
The directory to monitor for files.
Callback that gets executed with each file name that is found. Filenames are provided with the full path.
An interval at which to check for new files.