Update API_LEVEL_21

[abonnaudet-ledger]

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.19%. Comparing base (603cf09) to head (eb62d4c).
Report is 4 commits behind head on API_LEVEL_21.

Additional details and impacted files

@@              Coverage Diff              @@
##           API_LEVEL_21     #715   +/-   ##
=============================================
  Coverage         60.19%   60.19%           
=============================================
  Files                12       12           
  Lines              1726     1726           
=============================================
  Hits               1039     1039           
  Misses              687      687           

Flag	Coverage Δ
unittests	60.19% <ø> (ø)

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