# tinker_cookbook.stores

| Class                                                                                                                   | Description                                                 |
| ----------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| [`StorageStat`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storagestat/index.md)             | File metadata.                                              |
| [`Storage`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storage/index.md)                     | Sync byte-level file I/O.                                   |
| [`AsyncStorage`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/asyncstorage/index.md)           | Async byte-level file I/O.                                  |
| [`LocalStorage`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/localstorage/index.md)           | File-based storage rooted at a local directory.             |
| [`FsspecStorage`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/fsspecstorage/index.md)         | Storage backend wrapping any `fsspec.AbstractFileSystem`.   |
| [`RunInfo`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/runinfo/index.md)                     | Metadata about a discovered training run.                   |
| [`RunRegistry`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/runregistry/index.md)             | Discovers training runs and provides stores for each.       |
| [`TrainingRunStore`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/trainingrunstore/index.md)   | Typed read/write access to one training run's data.         |
| [`EvalStore`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/evalstore/index.md)                 | Manages evaluation runs across checkpoints.                 |
| [`IncrementalReader`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/incrementalreader/index.md) | Reads a JSONL file incrementally, tracking the byte offset. |

| Function                                                                                                                | Description                                         |
| ----------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------- |
| [`storage_from_uri()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storage_from_uri/index.md) | Create a Storage backend from a URI string.         |
| [`storage_join()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/stores/storage_join/index.md)         | Join storage path segments, normalizing the result. |