transformers

5c3fb7f7 - Harmonize `past_key_value` to `past_key_valueS` everywhere (#39956)

Harmonize `past_key_value` to `past_key_valueS` everywhere (#39956) * all modulars and llama * apply modular * bert and gpt2 copies * fix imports * do it everywhere * fix import * finalize it * fix * oups set it in modular * style * fix * Add 1 version to deprecation cycle * Update modeling_layers.py