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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_translations_multi_paths():
 """Return the correct gettext translations that should be used for this request. This will never fail and return a dummy translation object if used outside of the request or if a translation cannot be found. """

    ctx = _request_ctx_stack.top
    if ctx is None:
        return None

    translations = getattr(ctx, "babel_translations", None)
    if translations is None:
        babel_ext = ctx.app.extensions["babel"]
        translations = None
        trs = None

        # reverse order: thus the application catalog is loaded last, so that
        # translations from libraries can be overriden
        for (dirname, domain) in reversed(babel_ext._translations_paths):
            trs = Translations.load(
                dirname, locales=[flask_babel.get_locale()], domain=domain
            )

            # babel.support.Translations is a subclass of
            # babel.support.NullTranslations, so we test if object has a 'merge'
            # method

            if not trs or not hasattr(trs, "merge"):
                # got None or NullTranslations instance
                continue
            elif translations is not None and hasattr(translations, "merge"):
                translations.merge(trs)
            else:
                translations = trs

        # ensure translations is at least a NullTranslations object
        if translations is None:
            translations = trs

        ctx.babel_translations = translations

    return translations