use generic for node value

[smoench]

This pull request

• [x] Adds template/generic phpdocs for node value

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (4ca8dd4) to head (48fe0ac). Report is 143 commits behind head on master.

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Additional details and impacted files

@@             Coverage Diff             @@
##              master      #333   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        57        57           
===========================================
  Files              6         6           
  Lines            157       157           
===========================================
  Hits             157       157           

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