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Pack readability_parser -- prolog/readability_parser.pl
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 build_agent(+Token:string, -Agent)
Construct an agent for making API requests using your Readability Parser Token. Your token is available on your account settings page.
 parse(+Agent, +UrlOrId:atom, -Response:dict)
Like parse/4 but without extra options.
 parse(+Agent, +UrlOrId:atom, -Response:dict, +Options:dict)
Parse an article with Readability's Parser API. UrlOrId can be either an article's URL or a Readability article ID.

Response is a dict representing Readability's raw response. In most cases, you can just access this dict directly to find what you need.