code: def _hash_add(cls, fields):
      flds = [
          f for f in fields if (f.compare if f.hash is None else f.hash)
      ]
      return _hash_fn(flds)
  
imports: import re
  import sys
  import copy
  import types
  import inspect
  import keyword
label_desc: Use image node_id 18 for calling a global function with example usage: _hash_add(cls, fields) and returns: _hash_fn