code: def clipout_neg(vec, threshold=1e-6):
      """
      clip to 0 if input lower than threshold value
  
      :param vec: (TensorFlow Tensor)
      :param threshold: (float) the cutoff threshold
      :return: (TensorFlow Tensor) clipped input
      """
      mask = tf.cast(vec > threshold, tf.float32)
      return mask * vec
  
imports: import tensorflow
label_desc: Use image node_id 2 for calling a global function with example usage: clipout_neg(vec, threshold) and returns: unknown