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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_attribute(self, node, column):
 """ Returns the given Node attribute associated to the given column. :param node: Node. :type node: AbstractCompositeNode or GraphModelNode :param column: Column. :type column: int :return: Attribute. :rtype: Attribute """


        if column > 0 and column < len(self.__horizontal_headers):
            return node.get(self.__horizontal_headers[self.__horizontal_headers.keys()[column]], None)