Fix for slow the bug tokenizer adding spaces to single id decodes (#32564)
* _decode signature change and quick return
* added bunch of decoding tests
* signature match and return
* added tests for decoding
* merged decoding test
* more tests for special tokens
* cosmetics
* fixed param
* ruffed the file
* refinement for single special tokens
* added test for single special tokens
* slight change to test name
Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>
* minor change test name for skip tokens
Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>
* killed already defined var
Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>
* minor update with vars
Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>
* killed already defined var once more
Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>
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Co-authored-by: Ita Zaporozhets <31893021+itazap@users.noreply.github.com>