model.fit(X_train, y_train, batch_size=mini_batch_size, epochs=nb_epochs, validation_data=(X_test, y_test))
plt.title('Accuracy')
plt.plot(model['accuracy'], label='train')
plt.plot(model['val_accuracy'], label='test')
plt.legend()
plt.show()
ypeError: 'Functional' object is not subscriptable

