gistfile1.txt

$ bin/console  debug:container directory_namer

 // This service is a public alias for the service
 // Vich\UploaderBundle\Naming\SubdirDirectoryNamer

Information for Service "Vich\UploaderBundle\Naming\SubdirDirectoryNamer"
=========================================================================

 Directory namer wich can create subfolder depends on generated filename.

 ---------------- -------------------------------------------------
  Option           Value                                           
 ---------------- -------------------------------------------------
  Service ID       Vich\UploaderBundle\Naming\SubdirDirectoryNamer
  Class            Vich\UploaderBundle\Naming\SubdirDirectoryNamer
  Tags             -
  Public           yes
  Synthetic        no
  Lazy             no
  Shared           yes
  Abstract         no
  Autowired        no
  Autoconfigured   no
 ---------------- -------------------------------------------------