code: def view_running_services(self, package: str='') -> str:
          '''View running services.'''
          output, _ = self._execute(
              '-s', self.device_sn, 'shell', 'dumpsys', 'activity', 'services', package)
          return outpuf view_running_services(self, package: str='') -> str:
          '''View running services.'''
          output, _ = self._execute(
              '-s', self.device_sn, 'shell', 'dumpsys', 'activity', 'services', package)
          return output
docs: View running services.