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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send_object(bucket, obj, expected_chksum=None, logger_data=None, restricted=True, as_attachment=False):
 """Send an object for a given bucket. :param bucket: The bucket (instance or id) to get the object from. :param obj: A :class:`invenio_files_rest.models.ObjectVersion` instance. :params expected_chksum: Expected checksum. :param logger_data: The python logger. :param kwargs: Keyword arguments passed to ``Object.send_file()`` :returns: A Flask response. """

        if not obj.is_head:
            check_permission(
                current_permission_factory(obj, 'object-read-version'),
                hidden=False
            )

        if expected_chksum and obj.file.checksum != expected_chksum:
            current_app.logger.warning(
                'File checksum mismatch detected.', extra=logger_data)

        file_downloaded.send(current_app._get_current_object(), obj=obj)
        return obj.send_file(restricted=restricted,
                             as_attachment=as_attachment)