  separate your segments with the separation token tokenizer.sep_token (or [sep]).
The original code can be found here.
MPNetConfig
[[autodoc]] MPNetConfig
MPNetTokenizer
[[autodoc]] MPNetTokenizer
    - build_inputs_with_special_tokens
    - get_special_tokens_mask
    - create_token_type_ids_from_sequences
    - save_vocabulary
MPNetTokenizerFast
[[autodoc]] MPNetTokenizerFast
MPNetModel
[[autodoc]] MPNetModel
    - forward
MPNetForMaskedLM
[[autodoc]] MPNetForMaskedLM
    - forward
MPNetForSequenceClassification
[[autodoc]] MPNetForSequenceClassification
    - forward
MPNetForMultipleChoice
[[autodoc]] MPNetForMultipleChoice
    - forward
MPNetForTokenClassification
[[autodoc]] MPNetForTokenClassification
    - forward
MPNetForQuestionAnswering
[[autodoc]] MPNetForQuestionAnswering
    - forward
