from tensorflow.contrib import slim

        [slim.conv2d, slim.separable_conv2d],
        weights_initializer=weights_init,
        activation_fn=tf.nn.relu6,
        normalizer_fn=normalizer_fn,
    ):
        with slim.arg_scope([slim.batch_norm], **batch_norm_params):
            with slim.arg_scope([slim.conv2d], weights_regularizer=regularizer):
                with slim.arg_scope(
                    [slim.separable_conv2d], weights_regularizer=depthwise_regularizer
                ) as sc:
