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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 slug_with_level(self, language=None):
 """Display the slug of the page prepended with insecable spaces to simluate the level of page in the hierarchy."""

        level = ''
        if self.level:
            for n in range(0, self.level):
                level += '&nbsp;&nbsp;&nbsp;'
        return mark_safe(level + self.slug(language))