The InteriorNode value() method should use the following steps: use self._leftOperand.value to get the value. use self._rightOperand.value to get the value. self._operator types are "+", "-", "/", "*", and "^". use self._operator in conditional logical to calculate the value to return. All I need is how to use condition logical to calculate the value to return on "*", and "^". please do this in python. Thanks