code: def bulk_submit(cls, imports, api=None):
          
          if not imports:
              raise SbgError('Imports are required')
  
          api = api or cls._API
  
          items = []
          for import_ in imports:
              volume = Transform.to_volume(import_.get('volume'))
              location = Transform.to_location(import_.get('location'))
              project = Transform.to_project(import_.get('project'))
              name = import_.get('name', None)
              overwrite = import_.get('overwrite', False)
  
              item = {
                  'source': {
                      'volume': volume,
                      'location': location
                  },
                  'destination': {
                      'project': project
                  },
                  'overwrite': overwrite
              }
  
              if name:
                  item['destination']['name'] = name
  
              items.append(item)
  
          data = {'items': items}
  
          response = api.post(url=cls._URL['bulk_create'], data=data)
          return ImportBulkRecord.parse_records(response=response, api=api)
docs: Submit imports in bulk
          :param imports: Imports to be retrieved.
          :param api: Api instance.
          :return: List of ImportBulkRecord objects.