config.json

{
  "add_source_bos": false,
  "add_source_eos": false,
  "bos_token": "<s>",
  "decoder_start_token": "</s>",
  "eos_token": "</s>",
  "layer_norm_epsilon": null,
  "unk_token": "<unk>",
   "model_type": "m2m_100"
}