code: def permutationFilter(perm):
      """This function can be used to selectively filter out specific permutation
      combinations. It is called by RunPermutations for every possible permutation
      of the variables in the permutations dict. It should return True for valid a
      combination of permutation values and False for an invalid one.
  
      Parameters:
      ---------------------------------------------------------
      perm: dict of one possible combination of name:value
            pairs chosen from permutations.
      """
  
      # An example of how to use this
      # if perm['__consumption_encoder']['maxval'] > 300:
      #  return False;
      #
      return True
  
label_desc: Use image node_id 1 for calling a global function with example usage: permutationFilter(perm) and returns: True