prefix_range in constructor can get two types of input:
List[int] for specifying distinct amount. e.g. [3, 5] will produce prefix3 and prefix5
tuple(int) for specifying a range. e.g. (2,4) will produce prefix2, prefix3, prefix4
Implement tests for the vectorizer in difference range, tokenizer and alternate_sign flag combinations.
Important Note in order for serialized prebuilt models to work with this version of transformer, pipelines that use HashVectorizer should be retrained and dumped.
prefix_rangein constructor can get two types of input:List[int]for specifying distinct amount. e.g.[3, 5]will produceprefix3andprefix5tuple(int)for specifying a range. e.g.(2,4)will produceprefix2,prefix3,prefix4HashVectorizershould be retrained and dumped.[3, 5]to keep current scores.