code: def total_ordering(cls):
      """Class decorator that fills in missing ordering methods"""
      # Find user-defined comparisons (not those inherited from object).
      roots = {
          op
          for op in _convert
          if getattr(cls, op, None) is not getattr(object, op, None)
      }
      if not roots:
          raise ValueError(
              "must define at least one ordering operation: < > <= >="
          )
      root = max(roots)  # prefer __lt__ to __le__ to __gt__ to __ge__
      for opname, opfunc in _convert[root]:
          if opname not in roots:
              opfunc.__name__ = opname
              setattr(cls, opname, opfunc)
      return cls
  
imports: from abc import get_cache_token
  from collections import namedtuple
  from reprlib import recursive_repr
  from _thread import RLock
  from types import GenericAlias
label_desc: Use image node_id 15 for calling a global function with example usage: total_ordering(cls) and returns: cls