Define replace for blocked tuples

[mtfishman]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.82%. Comparing base (59f4b09) to head (e354fd3).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #123      +/-   ##
==========================================
+ Coverage   72.56%   72.82%   +0.25%     
==========================================
  Files          24       24              
  Lines        1152     1159       +7     
==========================================
+ Hits          836      844       +8     
+ Misses        316      315       -1     

Flag	Coverage Δ
docs	0.00% <0.00%> (ø)

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