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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 get_current_activities(self, login=None, **kwargs):
 """Get the current activities of user. Either use the `login` param, or the client's login if unset. :return: JSON """


        _login = kwargs.get(
            'login',
            login or self._login
        )
        _activity_url = ACTIVITY_URL.format(login=_login)
        return self._request_api(url=_activity_url).json()