def build(self, input_shape):
    super(AddingPreprocessingLayer, self).build(input_shape)
    self.sum = tf.Variable(0.0, dtype=tf.float32)
def build(self, input_shape):
    super(AddingPreprocessingLayer, self).build(input_shape)
    self.sum = tf.Variable(0.0, dtype=tf.float32)