code: def register(self, obj, value):
      """Registers a Python object within the registry.
  
      Args:
        obj: The object to add to the registry.
        value: The stored value for the 'obj' type.
  
      Raises:
        KeyError: If the same obj is used twice.
      """
      if obj in self._registry:
          raise KeyError(f"{type(obj)} has already been registered.")
      self._registry[obj] = value
  
label_desc: Use image node_id 2 for calling the TypeRegistry obj's underlying member method code with example usage: obj.register(obj, value) without return types