code: def register(celf, clazzes):
      if type(clazzes) != tuple:
          clazzes = (clazzes,)
      return celf._register([(clazzes, (None,))])
  
file_path: catboost/contrib/python/fonttools/fontTools/misc/visitor.py
imports: import enum
label_desc: Use image node_id 2 for calling the Visitor obj's underlying member method code with example usage: obj.register(celf, clazzes) and returns: celf