module documentation

Code that accesses the https://repository.overheid.nl/frbr/ data in a bulk way. ...pending removal.

It's not a viable route to download a lot of data In particular the SRU interface seems to link to most of this and provide an actual search and filtering interface ...though it is perhaps a better route towards "the set of files for a single ID" more than BUS is.

Class FRBRFetcher Helper class to fetch data from an area of https://repository.overheid.nl/frbr/ See the constructor's docstring for more. In theory we could use the bulk service to do functionally the same, which is more efficient for both sides, yet almost no SSH tool seems to be able to negotiate with the way they configured it (SFTP imitating anonymous FTP, which is a grea idea in theory).