dataqa

I cannot initialise EntityRecognizer object with no examples, like in the docs

1

## How to reproduce the behaviour ``` cfg = {"model": DEFAULT_NER_MODEL} model = registry.resolve(cfg, validate=True)["model"] ner = EntityRecognizer(nlp.vocab, model) ner.initialize(lambda: [], nlp=nlp) ``` The error I get: ``` TypeError: [E930]...