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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_model(self):
        '''
        `object` of model as a function approximator,
        which has `cnn` whose type is 
        `pydbm.cnn.pydbm.cnn.convolutional_neural_network.ConvolutionalNeuralNetwork`.
        '''
        class Model(object):
            def __init__(self, cnn):
                self.cnn = cnn

        return Model(self.__cnn)