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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 unescape(self):
 """ Within an interpolation, evaluation, or escaping, remove HTML escaping that had been previously added. """

        for i, k in enumerate(self._html_escape_table):
            v = self._html_escape_table[k]
            self.obj = self.obj.replace(v, k)

        return self._wrap(self.obj)