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Here are the options in the drush command:
```
drush help islandora_newspaper_batch_preprocess
Preprocessed newspaper issues into database entries.
Options:
--aggregate_ocr A flag to cause OCR to be aggregated to issues, if OCR is also being generated per-page.
--content_models A comma-separated list of content models to assign to the objects. Only applies to the "newspaper issue"
level object.
--create_pdfs A flag to cause PDFs to be created in newspaper issues. Page PDF creation is dependant on the configuration
within Drupal proper.
--directory_dedup A flag to indicate that we should avoid repreprocessing newspaper issues which are located in directories.
--do_not_generate_ocr A flag to allow for conditional OCR generation.
--email_admin A flag to notify the site admin when the newspaper issue is fully ingested (depends on Rules being enabled).
--namespace The namespace for objects created by this command. Defaults to namespace set in Fedora config.
--parent The collection to which the generated items should be added. Only applies to the "newspaper issue" level
object. If "directory" and the directory containing the newspaper issue description is a valid PID, it will
be set as the parent. If this is specified and itself is a PID, all newspapers issue will be related to the
given PID. Required.
--parent_relationship_pred The predicate of the relationship to the parent. Defaults to "isMemberOf".
--parent_relationship_uri The namespace URI of the relationship to the parent. Defaults to
"info:fedora/fedora-system:def/relations-external#".
--target The target to directory or zip file to scan. Required.
--type Either "directory" or "zip". Required.
--wait_for_metadata A flag to indicate that we should hold off on trying to ingest newspaper issues until we have metadata
available for them at the newspaper issue level.
Aliases: inbp
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Third, process all items in the batch queue:
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