This is a plugin that will create a per share .Recycle.Bin folder on each smb share for files deleted on that share. Built into samba is a module called "vfs recycle" that handles the deletion of files. This plugin manages the vfs recycle settings using smb-shares.conf and starts and stops vfs recycle. Basically samba is restarted with the smb-shares.conf file configured for vfs recycle.
The reason the folder name of .Recycle.Bin was chosen is so the recycle bin is a hidden fold