Now only uses functions for prompt definition (#213)
* add function prompt assigment
* add json casting
* fix ruff setting + fmt
* replaced json tasks by python tasks, step 1
* wip
* simplification part 1
* fix extended tasks + typo
* fix
* fix nanotron example
* small fix
* now use function, not string, to pass prompts in examples
* moved everyone to function calling
* LightevalTask now only takes functions
* removed templated type which messed up the test suite
* last fix + doc udpate
* Update src/lighteval/tasks/registry.py
Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>
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Co-authored-by: Hynek Kydlíček <kydlicek.hynek@gmail.com>
Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>
