code: def unknown_labels(hist1, hist2) -> bool:
      # check consistency of bin_labels
      labels1 = hist1.keySet
      labels2 = hist2.keySet
      subset = labels1 <= labels2
      return not subset
  
file_path: popmon/popmon/analysis/comparison/comparisons.py
imports: import numpy
  from scipy import stats
  from popmon.base.registry import Registry
label_desc: Use image node_id 8 for calling a global function with example usage: unknown_labels(hist1, hist2) and returns: unknown