code: def load_egg(filepath, update=True):
      
      try:
          egg = Egg(**dd.io.load(filepath))
      except:
          # if error, try loading old format
          with open(filepath, 'rb') as f:
              egg = pickle.load(f)
  
      if update:
          if egg.meta:
              old_meta = egg.meta
              egg.crack()
              egg.meta = old_meta
              return egg
          else:
              return egg.crack()
      else:
          return egg
docs: Loads pickled egg
  
      Parameters
      ----------
      filepath : str
          Location of pickled egg
  
      update : bool
          If true, updates egg to latest format
  
      Returns
      ----------
      egg : Egg data object
          A loaded unpickled egg