transformers

c962c2ad - Adds missing module_specs for usages of _LazyModule (#15230)

Adds missing module_specs for usages of _LazyModule (#15230) * Add missing __spec__ for transformers.models.auto * Moves the __spec__-test to the UnitTest class * Adds module_spec to all instances of _LazyModule * Refactors an old test from pytest to unittest