added unsqueeze_dim to apply_rotary_pos_emb (#27117)
* added unsqueeze_dim to apply_rotary_pos_emb
* Added docstring
* Modified docstring
* Modified docstring
* Modified docstring
* Modified docstring
* Modified docstring
* ran make fix-copies and make fixup
* Update src/transformers/models/llama/modeling_llama.py
Accepting the proposed changes in formatting.
Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>
* incorporating PR suggestions
* incorporating PR suggestions
* incorporating PR suggestions
* incorporating PR suggestions
* ..
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Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>