code: def replace_arguments(config, world_size):
      return {
          # 1. reduce hidden size
          "dim": config.emb_dim // world_size,
          # 2. reduce number of heads
          "n_heads": config.n_heads // world_size,
      }
  
file_path: parallelformers/parallelformers/policies/xlm.py
imports: from transformers.models.xlm.modeling_xlm import MultiHeadAttention, TransformerFFN
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 1 for calling the XLMAttentionPolicy obj's underlying member method code with example usage: obj.replace_arguments(config, world_size) and returns: dict