special_tokens_map.json

{
  "bos_token": {
    "content": "<|begin_of_text|>",
    "lstrip": false,
    "normalized": false,
    "rstrip": false,
    "single_word": false
  },
  "eos_token": {
    "content": "<|end_of_text|>",
    "lstrip": false,
    "normalized": false,
    "rstrip": false,
    "single_word": false
  },
  "mask_token": "_",
  "pad_token": "<|end_of_text|>"
}