code: def load(root_file, use_proxy=True, key=None):
      
      if isinstance(root_file, string_types):
          root_file = root_open(root_file)
          own_file = True
      else:
          own_file = False
      obj = Unpickler(root_file, use_proxy).load(key)
      if own_file:
          root_file.Close()
      return obj
docs: Load an object from a ROOT TFile.
  
      `root_file` may be an open ROOT file or directory, or a string path to an
      existing ROOT file.