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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 respond(self, request, view, newsitems, extra_context={}):
 """A helper that takes some news items and returns an HttpResponse"""

        context = self.get_context(request, view=view)
        context.update(self.paginate_newsitems(request, newsitems))
        context.update(extra_context)
        template = self.get_template(request, view=view)
        return TemplateResponse(request, template, context)