[DO NOT MERGE] Validate beam 2.77.0 RC2

[Amar3tto]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.38%. Comparing base (4364622) to head (00b99ab).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@              Coverage Diff              @@
##               main    #4293       +/-   ##
=============================================
+ Coverage     34.34%   59.38%   +25.04%     
- Complexity      524     3719     +3195     
=============================================
  Files           216      643      +427     
  Lines         13274    38492    +25218     
  Branches       1322     4284     +2962     
=============================================
+ Hits           4559    22859    +18300     
- Misses         8345    14463     +6118     
- Partials        370     1170      +800     

Components	Coverage Δ
spanner-templates	84.47% <ø> (∅)
spanner-import-export	∅ <ø> (∅)
spanner-live-forward-migration	88.96% <ø> (∅)
spanner-live-reverse-replication	80.85% <ø> (∅)
spanner-bulk-migration	88.99% <ø> (∅)
gcs-spanner-dv	88.08% <ø> (∅)
see 439 files with indirect coverage changes

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