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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_attributes(self):
 """ Returns the Node attributes. Usage:: [<Attribute object at 0x7fa471d3b5e0>, <Attribute object at 0x101e6c4a0>] :return: Attributes. :rtype: list """


        return [attribute for attribute in self.itervalues() if issubclass(attribute.__class__, Attribute)]