def get_archive_url(self):
headers, data = self._requester.requestJsonAndCheck(<EOL>"<STR_LIT:GET>",<EOL>self.url + "<STR_LIT>",<EOL>headers={<EOL>"<STR_LIT>": Consts.mediaTypeMigrationPreview<EOL>}<EOL>)<EOL>return data["<STR_LIT:data>"]<EOL>
:calls: `GET /user/migrations/:migration_id/archive`_
:rtype: str