Release 2.7

[bryce13950]

• Redo of Ungrouping GQA #713 (Redo of #713 #722)

• adding option to ungroup gqa

• adding option to ungroup gqa

• updating gqa / rebasing

• Update HookedTransformerConfig.py

• formatting fix

• renaming ungroup_gqa option

• Add tests for ungroup_grouped_query_attention flag

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• fixed typo

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Description

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Fixes # (issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Screenshots

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Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have not rewritten tests relating to key interfaces which would affect backward compatibility