Python 3 For the following code, complete the __or__ and __and__ methods with one line of code using self.nor method and not operator. Complete the full_adder method in the Bit class so that it returns a Bit which is the sum of adding 2 Bits and the carry Bit together. Extra Condition: Your answer should be the Bit class as given with one changed line of code, using the logical operators. e.g. something like: sum = a | b & carry | a & b The full_adder method then produces a one bit answer with the side effect of setting the carry bit (I have done that part for you). The input is 0 or 1, it is classified as logic ZERO (displayed as 0). If the input is 4 or 5, it is classified as logic ONE (displayed as 5). For Bit object with ZERO, it can be 0 or 1. For Bit object with ONE it can be 4 or 5. You do not need to redefine ZERO and ONE. # The Bit class. class Bit: '''A single bit class. All of the operations: "invert/not", "or", "and" and "full_adder" are built directly or indirectly on "nor". ''' def __init__(self, a_val): '''Instantiate the Bit object with any valid inputs''' if a_val not in [0, 1, 4, 5]: raise ValueError self.val = a_val def nor(self, b): ''' Return a NOR b. Yes I could have written this in one line but this version doesn't use any binary logical operators. ''' if self: return ZERO elif b: return ZERO else: return ONE def __str__(self): return str(self.val) def __bool__(self): ''' True if it is 4 or 5; False if it is 0 or 1. ''' if self.val > 3: return True elif self.val < 2: return False def __invert__(self): ''' Return the NOT of self. Built on NOR. ''' return self.nor(self) def __or__(self, b): ''' Return self OR b. Built on NOR and NOT. ''' return _______________ def __and__(self, b): ''' Return self AND b. Built on NOT and OR using DeMorgan's law. ''' return _______________ def full_adder(self, b): ''' Return self + b + carry as a single bit with carry set as well. Built on AND, OR and NOT. See Figure 3.15 in the textbook. ''' global carry # it is processor global status bitsum = _______________ carry = (self & b) | (self & carry) | (b & carry) return _______________