One searchable document, flattened to plain text.
tokens is a pre-split lowercase form of content. It defaults to an empty
list because many search engines tokenize the text themselves. Hosts that
need precomputed tokens set search_tokens: true in config :doc_shell or
the options to DocShell.Presentation.StaticGenerator. Enabling tokens
increases the artifact size in exchange for doing that work at build time.
audience and locale are null when the producer does not scope entries that
way. They are always present so a renderer can filter without first checking
which producer it is reading.