docs: def transform(self, path):
          """
          Transform a path into an actual Python object.
  
          The path can be arbitrary long. You can pass the path to a package,
          a module, a class, a function or a global variable, as deep as you
          want, as long as the deepest module is importable through
          ``importlib.import_module`` and each object is obtainable through
          the ``getattr`` method. Local objects will not work.
  
          Args:
              path (str): the dot-separated path of the object.
  
          Returns:
              object: the imported module or obtained object.
          """
          if path is None or not path:
              return None
  
          obj_parent_modules = path.split(".")
          objects = [obj_parent_modules.pop(-1)]
  
          while True:
              try:
                  parent_module_path = ".".join(obj_parent_modules)
                  parent_module = importlib.import_module(parent_module_path)
                  break
              except ImportError:
                  if len(obj_parent_modules) == 1:
                      raise ImportError("No module named '%s'" % obj_parent_modules[0])
                  objects.insert(0, obj_parent_modules.pop(-1))
  
          current_object = parent_module
          for obj in objects:
              current_object = getattr(current_object, obj)
          return current_object