import tensorflow as tf

            return in_length/stride + 1

    def build(self, x):
        """Run the backprop version of the Circuit."""
        self.prepare_tensors()
        i0 = tf.constant(0)

        # Calculate l2 hidden state size
        x_shape = x.get_shape().as_list()
        if self.include_pooling and len(self.ff_conv_k):
