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0434db9a - [cogview4][feat] Support attention mechanism with variable-length support and batch packing (#11349)

[cogview4][feat] Support attention mechanism with variable-length support and batch packing (#11349) * [cogview4] Enhance attention mechanism with variable-length support and batch packing --------- Co-authored-by: YiYi Xu <yixu310@gmail.com> Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>