old_contents: # from .directory_service import DirectoryService
  from .omdb_service import OMDBService
  
  ALL_SERVICES = [
      # DirectoryService()
      OMDBService()
  ]
  
new_contents: from .directory_service import DirectoryService
  # from .omdb_service import OMDBService
  
  ALL_SERVICES = [
      DirectoryService()
      # OMDBService()
  ]
  
subject: Make directory service the only service