code: def replace_modules():
      return {"LongformerSelfAttention": LongformerSelfAttention_}
  
file_path: parallelformers/parallelformers/policies/longformer.py
imports: from transformers.models.longformer.modeling_longformer import LongformerLayer
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.transformers.modeling_longformer import LongformerSelfAttention_
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 2 for calling the LongformerPolicy obj's underlying member method code with example usage: obj.replace_modules() and returns: dict