code: def get_prunable_weights(self):
      """Returns list of prunable weight tensors.
  
      All the weight tensors which the layer wants to be pruned during
      training must be returned by this method.
  
      Returns: List of weight tensors/kernels in the keras layer which must be
          pruned during training.
      """
      raise NotImplementedError("Must be implemented in subclasses.")
  
imports: import abc
  import six
label_desc: Use image node_id 1 for calling the PrunableLayer obj's underlying member method code with example usage: obj.get_prunable_weights() without return types