These types represent all the different kinds of sequence that can be used as input of a Tokenizer. Globally, any sequence can be either a string or a list of strings, according to the operating mode of the tokenizer: raw text vs pre-tokenized.

TextInputSequence

A str that represents an input sequence

PreTokenizedInputSequence

A pre-tokenized input sequence. Can be one of:

• A List of str
• A Tuple of str

alias of Union[List[str], Tuple[str]].

InputSequence

Represents all the possible types of input sequences for encoding. Can be:

• When is_pretokenized=False: TextInputSequence
• When is_pretokenized=True: PreTokenizedInputSequence

alias of Union[str, List[str], Tuple[str]].