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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 addTranslation(self,translation):
        '''Appends one Translation to translations
        '''
        if isinstance(translation, Translation):
            self.translations.append(translation)
        else:
            raise(TranslationError,
                   'translation Type should be Translation, not %s' % type(
                    translation)
                   )