True when the tokenizer.json post_processor adds specials only BEFORE the
sequence (or adds none): null, ByteLevel (offset-only, adds no ids), or a
TemplateProcessing whose single template ends with the Sequence slot.
Unknown processor types conservatively return false.
True when the tokenizer.json post_processor adds specials only BEFORE the sequence (or adds none): null, ByteLevel (offset-only, adds no ids), or a TemplateProcessing whose
singletemplate ends with the Sequence slot. Unknown processor types conservatively return false.