Method build

tensorflow/python/keras/engine/training_test.py:3587–3593

(self, input_shape)

class LambdaUpdateLayer(keras.layers.Layer):

  def build(self, input_shape):
    self.counter = self.add_weight(
        'counter',
        dtype='int32',
        shape=(),
        initializer='zeros',
        trainable=False)

  def call(self, inputs):
    # Make sure update isn't run twice.