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4548e68e - Cache RoPE freqs on device to avoid repeated CPU-GPU copy in QwenImage (#13406)

Cache RoPE freqs on device to avoid repeated CPU-GPU copy in QwenImage (#13406) * Cache RoPE freqs on device to avoid repeated CPU-GPU copy in QwenImage * Apply style fixes * use lru_cache_unless_export --------- Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com> Co-authored-by: dg845 <58458699+dg845@users.noreply.github.com> Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>