code: def cli(env, columns, sortby, volume_id):
      
      file_storage_manager = SoftLayer.FileStorageManager(env.client)
  
      legal_volumes = file_storage_manager.get_replication_partners(
          volume_id
      )
  
      if not legal_volumes:
          click.echo("There are no replication partners for the given volume.")
      else:
          table = formatting.Table(columns.columns)
          table.sortby = sortby
  
          for legal_volume in legal_volumes:
              table.add_row([value or formatting.blank()
                             for value in columns.row(legal_volume)])
  
          env.fout(table)
docs: List existing replicant volumes for a file volume.