code: def execute(self):
          
          from vsgen.util.logger import VSGLogger
  
          VSGLogger.info(self._logname, self._message)
          start = time.clock()
          for i in self._registerables:
              i.register()
          end = time.clock()
          VSGLogger.info(self._logname, "Register %s items in %s seconds:", len(self._registerables), end - start)
          self._start = time.clock()
docs: Executes the command.