code: def __init__(self, func):
      """Create a OneTimeProperty instance.
  
      Parameters
      ----------
        func : method
  
          The method that will be called the first time to compute a value.
          Afterwards, the method's name will be a standard attribute holding
          the value of this computation.
      """
      self.getter = func
      self.name = func.__name__
  
label_desc: Use image node_id 1 to create a new OneTimeProperty object  with example: obj = OneTimeProperty(func)