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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 setValue(self, value):
 """ Set the attributes value @param value: The new value (may be None) @type value: basestring @return: self @rtype: L{Attribute} """

        if isinstance(value, Text):
            self.value = value
        else:
            self.value = Text(value)
        return self