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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 post_registration_redirect(self, request, user):
 """ After registration, redirect to the home page or supplied "next" query string or hidden field value. """

        next_url = "/registration/register/complete/"
        if "next" in request.GET or "next" in request.POST:
            next_url = request.GET.get("next", None) or request.POST.get("next", None) or "/"
            
        return (next_url, (), {})