code: def replace_modules():
      return {"LEDEncoderSelfAttention": LongformerSelfAttention_}
  
imports: from transformers.models.led.modeling_led import LEDDecoderLayer, LEDEncoderLayer
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.transformers.modeling_bart import BartAttention_
  from parallelformers.transformers.modeling_longformer import LongformerSelfAttention_
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 2 for calling the LEDEncoderPolicy obj's underlying member method code with example usage: obj.replace_modules() and returns: dict