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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 slang_time(self, locale="en"):
 """"Returns human slang representation of time. Keyword Arguments: locale -- locale to translate to, e.g. 'fr' for french. (default: 'en' - English) """

        dt = self.datetime()
        return pendulum.instance(dt).diff_for_humans(locale=locale)