code: def _create_transmissions(self, content_metadata_item_map):
          
          # pylint: disable=invalid-name
          ContentMetadataItemTransmission = apps.get_model(
              'integrated_channel',
              'ContentMetadataItemTransmission'
          )
          transmissions = []
          for content_id, channel_metadata in content_metadata_item_map.items():
              transmissions.append(
                  ContentMetadataItemTransmission(
                      enterprise_customer=self.enterprise_configuration.enterprise_customer,
                      integrated_channel_code=self.enterprise_configuration.channel_code(),
                      content_id=content_id,
                      channel_metadata=channel_metadata
                  )
              )
          ContentMetadataItemTransmission.objects.bulk_create(transmissions)
docs: Create ContentMetadataItemTransmision models for the given content metadata items.