@@ -0,0 +1,292 @@
+import keras%0Aimport keras_retinanet%0A%0Aclass Upsampling(keras.layers.Layer):%0A%09def __init__(self, size, *args, **kwargs):%0A%09%09self.size = size%0A%09%09super(Upsampling, self).__init__(*args, **kwargs)%0A%0A%09def call(self, inputs, **kwargs):%0A%09%09return keras_retinanet.backend.resize_images(inputs, self.size)%0A

Add upsampling layer.