Problem running the ner.manual example given in the docs

I am trying to follow the ner.manual recipe shown here:

When I ran the command prodigy ner.manual ner_news_headlines blank:en ./news_headlines.jsonl --label PERSON,ORG,PRODUCT,LOCATION, I got an error saying that blank:en could not be found.

I am not able to figure out how to download the blank:en model. Can someone please help?

Are you using the latest version of Prodigy? The shortcut blank:en (or blank: plus any supported language code) to start off with a blank model was only added in v1.9.

It's basically short for:

import spacy
nlp = spacy.blank("en")

And then using ./blank-model as the input model in your Prodigy command.