code: def constructor(self):
          '''
              Return the contract's immediate constructor.
              If there is no immediate constructor, returns the first constructor
              executed, following the c3 linearization
              Return None if there is no constructor.
          '''
          cst = self.constructor_not_inherited
          if cst:
              return cst
          for inherited_contract in self.inheritance:
              cst = inherited_contract.constructor_not_inherited
              if cst:
                  return cst
          return Nonf constructor(self):
          '''
              Return the contract's immediate constructor.
              If there is no immediate constructor, returns the first constructor
              executed, following the c3 linearization
              Return None if there is no constructor.
          '''
          cst = self.constructor_not_inherited
          if cst:
              return cst
          for inherited_contract in self.inheritance:
              cst = inherited_contract.constructor_not_inherited
              if cst:
                  return cst
          return None
docs: Return the contract's immediate constructor.
              If there is no immediate constructor, returns the first constructor
              executed, following the c3 linearization
              Return None if there is no constructor.