<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def with_json_path(self, path, field=None):
 """Annotate Storage objects with a specific JSON path. :param path: Path to get inside the stored object, which can be either a list of path components or a comma-separated string :param field: Optional output field name """

        if field is None:
            field = '_'.join(['json'] + json_path_components(path))

        kwargs = {field: JsonGetPath('json', path)}
        return self.defer('json').annotate(**kwargs)