# tinker_cookbook.utils

| Function                                                                                                                                           | Description                                                                     |
| -------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
| [`read_jsonl()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/read_jsonl/index.md)                                         | Read a JSONL (JSON Lines) file and return a list of parsed dictionaries.        |
| [`code_state()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/code_state/index.md)                                         | Capture the current code state for one or more Python modules as a diff string. |
| [`format_colorized()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/format_colorized/index.md)                             | Colour-code text according to per-token weights.                                |
| [`warn_deprecated()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/warn_deprecated/index.md)                               | Emit a DeprecationWarning for a deprecated feature.                             |
| [`deprecated()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/deprecated/index.md)                                         | Decorator to mark a function or class as deprecated.                            |
| [`make_deprecated_module_getattr()`](https://tinker-docs.thinkingmachines.ai/cookbook/api-reference/utils/make_deprecated_module_getattr/index.md) | Create a `__getattr__` function for deprecating module-level attributes.        |