code: def attn_out():
      return [
          Layer(
              weight="cross_attn.out_proj.weight",
              bias="cross_attn.out_proj.bias",
              replace=AllReduceLinear,
          ),
      ]
  
imports: from transformers.models.prophetnet.modeling_prophetnet import ProphetNetDecoderLayer, ProphetNetEncoderLayer
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.transformers.modeling_prophetnet import ProphetNetAttention_
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 4 for calling the ProphetNetDecoderPolicy obj's underlying member method code with example usage: obj.attn_out() and returns: list