| from typing import ClassVar | |
| from fsspec import AbstractFileSystem | |
| __all__ = ("ChainedFileSystem",) | |
| class ChainedFileSystem(AbstractFileSystem): | |
| """Chained filesystem base class. | |
| A chained filesystem is designed to be layered over another FS. | |
| This is useful to implement things like caching. | |
| This base class does very little on its own, but is used as a marker | |
| that the class is designed for chaining. | |
| Right now this is only used in `url_to_fs` to provide the path argument | |
| (`fo`) to the chained filesystem from the underlying filesystem. | |
| Additional functionality may be added in the future. | |
| """ | |
| protocol: ClassVar[str] = "chained" | |