code: def bulk_submit(cls, exports, copy_only=False, api=None):
          
          if not exports:
              raise SbgError('Exports are required')
  
          api = api or cls._API
  
          items = []
          for export in exports:
              file_ = Transform.to_file(export.get('file'))
              volume = Transform.to_volume(export.get('volume'))
              location = Transform.to_location(export.get('location'))
              properties = export.get('properties', {})
              overwrite = export.get('overwrite', False)
  
              item = {
                  'source': {
                      'file': file_
                  },
                  'destination': {
                      'volume': volume,
                      'location': location
                  },
                  'properties': properties,
                  'overwrite': overwrite
              }
  
              items.append(item)
  
          data = {'items': items}
          params = {'copy_only': copy_only}
  
          response = api.post(
              url=cls._URL['bulk_create'], params=params, data=data
          )
          return ExportBulkRecord.parse_records(response=response, api=api)
docs: Create exports in bulk.
          :param exports: Exports to be submitted in bulk.
          :param copy_only: If true files are kept on SevenBridges bucket.
          :param api: Api instance.
          :return: list of ExportBulkRecord objects.