code: def _start_services(self, console_env):
          
          self._ad.services.register('sl4a', sl4a_service.Sl4aService)
          console_env['s'] = self._ad.services.sl4a
          console_env['sl4a'] = self._ad.sl4a
          console_env['ed'] = self._ad.ed
docs: Overrides superclass.