WordPieceTokeizer -> WordPieceToke**n**izer https://github.com/zhangxsin/Google_BERT/blob/b0f408906b11a4efd47863028a002c1f3d8a7936/scripts/create_pretraining_dataset.py#L68
WordPieceTokeizer -> WordPieceTokenizer
Google_BERT/scripts/create_pretraining_dataset.py
Line 68 in b0f4089