docs: def create_mirror(self, resource_name, target_name, mirror_type,
                        slave_resource_name, rpo=None, remote_rpo=None,
                        schedule=None, remote_schedule=None,
                        activate_mirror='no'):
          '''creates a mirror and returns a mirror object.
             target name must be a valid target from target_list,
             mirror type must be 'sync' or 'async',
             slave_resource_name would be the slave_cg name'''
  
          return self._create_mirror('cg', resource_name, target_name,
                                     mirror_type, slave_resource_name, rpo=rpo,
                                     remote_rpo=remote_rpo, schedule=schedule,
                                     remote_schedule=remote_schedule,
                                     activate_mirror=activate_mirror)