def bulk_submit(cls, exports, copy_only=False, api=None):
        """
        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.
        """
        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)