class_docstr: Main Classifier object, used to classify things into similar sets.
code: def _process(self):
      if not self._dirty:
          return
  
      # Do any deferred processing
      sets = self._sets
      self._sets = [s for s in sets if s]
  
      if self._sort:
          self._sets = sorted(
              self._sets, key=lambda s: (-len(s), sorted(s))
          )
  
      self._dirty = False
  
file_path: catboost/contrib/python/fonttools/fontTools/misc/classifyTools.py
label_desc: Use image node_id 4 for calling the Classifier obj's underlying member method code with example usage: obj._process() without return types