docs: def do_put(self, line):
          "put [:tablename] [!fieldname:expectedvalue] {json-body} [{json-body}, {json-body}...]"
          table, line = self.get_table_params(line)
          expected, line = self.get_expected(line)
          if expected:
              print "expected: not yet implemented"
              return
  
          if line.startswith('(') or line.startswith('['):
              print "batch: not yet implemented"
              return
  
              list = self.get_list(line)
              wlist = self.conn.new_batch_write_list()
              wlist.add_batch(table, [ table.new_item(None, None, item) for item in list ])
              response = self.conn.batch_write_item(wlist)
              consumed = response['Responses'][table.table_name]['ConsumedCapacityUnits']
  
              if 'UnprocessedItems' in response and response['UnprocessedItems']:
                  print ""
                  print "unprocessed: ", response['UnprocessedItems']
                  print ""
          else:
              item = json.loads(line)
              table.put_item(item)
              consumed = None
  
          if self.consumed and consumed:
              print "consumed units:", consumed