code: def run(self, *args):
          
          params = self.parser.parse_args(args)
  
          entry = params.entry
  
          if params.add:
              code = self.add(entry)
          elif params.delete:
              code = self.delete(entry)
          else:
              term = entry
              code = self.blacklist(term)
  
          return code
docs: List, add or delete entries from the blacklist.
  
          By default, it prints the list of entries available on
          the blacklist.