special_tokens_map.json

{
  "additional_special_tokens": [
    "<extra_id_1>",
    "<extra_id_2>",
    "<extra_id_3>",
    "<extra_id_4>",
    "<extra_id_5>",
    "<extra_id_6>"
  ],
  "eos_token": "</s>",
  "pad_token": "<pad>",
  "unk_token": "<unk>"
}