Return a specific class

        :param name: the name of the class

        :rtype: a :class:`ClassDefItem` object

def get_class(self, name):
        """
        Return a specific class

        :param name: the name of the class

        :rtype: a :class:`ClassDefItem` object
        """
        for i in self.get_classes():
            if i.get_name() == name:
                return i
        return None