import tensorflow as tf

      weights_regularizer=None,
      scope=scope + '_depthwise')
  return slim.conv2d(
      outputs,
      filters,
      1,
      weights_initializer=tf.truncated_normal_initializer(
          stddev=pointwise_weights_initializer_stddev),
      weights_regularizer=slim.l2_regularizer(weight_decay),
      scope=scope + '_pointwise')
