config.json

{
  "add_prefix_space": false,
  "bos_token": "<|endoftext|>",
  "clean_up_tokenization_spaces": false,
  "eos_token": "<|endoftext|>",
  "model_max_length": 4096,
  "tokenizer_class": "GPT2TokenizerFast",
  "unk_token": "<|endoftext|>"
}