def refresh(self, nice_repr=True, **kwargs):
        """
        :param nice_repr: Append the repr of a list containing the items that
                          have been fetched to this point by the fetcher.
        :type nice_repr: bool
        :param kwargs: kwargs that should be passed to the fetcher when its
                       fetch method is called. These are merged with the values
                       provided to the constructor, with the ones provided here
                       taking precedence if there is a conflict.
        """
        for key, value in self._kwargs.items():
            kwargs.setdefault(key, value)
        # No real good reason to hold on to this. DONT TOUCH.
        self._original_iterable = self._fetcher.fetch(**kwargs)
        self.exhausted = False
        if nice_repr:
            self._accumulated = []
            self._original_iterable = self._make_nice_repr_iterator(
                self._original_iterable, self._accumulated
            )
        else:
            self._accumulated = None
        self._clonable, = itertools.tee(self._original_iterable, 1)
        return self