Class needed for streaming decode
ByteFallback Decoder
ByteFallback is a simple trick which converts tokens looking like <0x61>
to pure bytes, and attempts to make them into a string. If the tokens
cannot be decoded you will get � instead for each inconvertible byte token
ByteLevel Decoder
This decoder is to be used in tandem with the ByteLevel PreTokenizer.
( pad_token = '<pad>' word_delimiter_token = '|' cleanup = True )
Parameters
str, optional, defaults to <pad>) —
The pad token used by CTC to delimit a new token. str, optional, defaults to |) —
The word delimiter token. It will be replaced by a bool, optional, defaults to True) —
Whether to cleanup some tokenization artifacts.
Mainly spaces before punctuation, and some abbreviated english forms. CTC Decoder
Fuse Decoder Fuse simply fuses every token into a single string. This is the last step of decoding, this decoder exists only if there is need to add other decoders after the fusion
( )
Parameters
str, optional, defaults to ▁) —
The replacement character. Must be exactly one character. By default we
use the ▁ (U+2581) meta symbol (Same as in SentencePiece). str, optional, defaults to "always") —
Whether to add a space to the first word if there isn’t already one. This
lets us treat hello exactly like say hello.
Choices: “always”, “never”, “first”. First means the space is only added on the first
token (relevant when special tokens are used or other pre_tokenizer are used). Metaspace Decoder
Replace Decoder
This decoder is to be used in tandem with the ~tokenizers.pre_tokenizers.Replace PreTokenizer.
Strip normalizer Strips n left characters of each token, or n right characters of each token