code: def add_args(parser):
      NATransformerModel.add_args(parser)
  
file_path: fairseq/fairseq/models/nat/cmlm_transformer.py
imports: from fairseq.models import register_model, register_model_architecture
  from fairseq.models.nat import NATransformerModel
  from fairseq.utils import new_arange
label_desc: Use image node_id 1 for calling the CMLMNATransformerModel obj's underlying member method code with example usage: obj.add_args(parser) without return types