code: func (s *BulkProcessorService) BulkSize(bulkSize int) *BulkProcessorService {
  	s.bulkSize = bulkSize
  	return s
  }
docs: // BulkSize specifies when to flush based on the size (in bytes) of the actions
  // currently added. Defaults to 5 MB and can be set to -1 to be disabled.