Enable nullability in TransparentBehavior

[gpetrou]

Proposed changes

• Enable nullability in TransparentBehavior.

Microsoft Reviewers: Open in CodeFlow

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Please upload report for BASE (feature/10.0@9d22ed9). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                 @@
##             feature/10.0      #11298   +/-   ##
==================================================
  Coverage                ?   74.68894%           
==================================================
  Files                   ?        3045           
  Lines                   ?      631388           
  Branches                ?       47196           
==================================================
  Hits                    ?      471577           
  Misses                  ?      156454           
  Partials                ?        3357           

Flag	Coverage Δ
Debug	74.68894% <25.00000%> (?)
integration	17.92933% <25.00000%> (?)
production	47.72085% <25.00000%> (?)
test	96.97705% <ø> (?)
unit	44.76985% <0.00000%> (?)

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