Promptzl

Stable version of promptzl. Turn LLMs into classifers!

Breaking Changes
- Class `promptzl.prompt.FVP` renamed to `promptzl.prompt.FFnVbzPair`
- Argument `tok_args` renamed to `tokenizer_args` in `promptzl.modules.CausalLM4Classification` and `promptzl.modules.MaskedLM4Classification`

Bugfixes
- Throw error if empty labels in verbalizer are passed.
- Add error if prompt is too long upon initialization

Add Option to Return (Grouped) Logits
`classify` method allows to pass the parameter `return_logits`. This option will set the grouped
logits to the `LLM4ClassificationOutput` class. In case of multiple words for a label (e.g., `Vbz([['good', 'great'], ['bad']])`),
the logits are averaged before return (i.e., The logits for `['good', 'great'],` will be averaged).

Bugfixes
- Fix verbalizer not updated after calling `set_prompt`.
- Fix bug when using Dict[str, List[str]] as a verbalizer with the `Vbz` class.