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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def update_variables(self) -> None: """Add the general |ChangeItem.value| with the |Device| specific base variable and assign the result to the respective target variable. sfcf(?) sfcf(1.0, 1.1, 1.2) Traceback (most recent call last):
 ValueError: When trying to add the value(s) `[-0.1 0. 0.1]` of \ AddItem `sfcf` and the value(s) `[ 1.1 1.1]` of variable `rfcf` of element \ `land_dill`, the following error occurred: operands could not be broadcast \ """

        value = self.value
        for device, target in self.device2target.items():
            base = self.device2base[device]
            try:
                result = base.value + value
            except BaseException:
                raise objecttools.augment_excmessage(
                    f'When trying to add the value(s) `{value}` of '
                    f'AddItem `{self.name}` and the value(s) `{base.value}` '
                    f'of variable {objecttools.devicephrase(base)}')
            self.update_variable(target, result)