feat: Check for instanceof INode instead of Node

[CarlSchwan]

@icewind1991 @salmart-dev

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.23%. Comparing base (ed901a9) to head (4b97148).
⚠️ Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1595   +/-   ##
=========================================
  Coverage     97.23%   97.23%           
  Complexity     2836     2836           
=========================================
  Files           175      175           
  Lines          9028     9028           
=========================================
  Hits           8778     8778           
  Misses          250      250           

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