Here is a list of all documented files with brief descriptions:

[detail level 123]

▼ google
▼ books_api
annotation.h
annotationdata.h
annotations.h
annotations_summary.h
annotationsdata.h
books_annotations_range.h
books_api.h
books_cloudloading_resource.h
books_service.h
books_subscription_release_info.h
books_volumes_recommended_rate_response.h
bookshelf.h
bookshelves.h
category.h
concurrent_access_restriction.h
dictlayerdata.h
discoveryclusters.h
download_access_restriction.h
download_accesses.h
family_info.h
geolayerdata.h
layersummaries.h
layersummary.h
metadata.h
notification.h
offers.h
reading_position.h
request_access.h
review.h
series.h
seriesmembership.h
usersettings.h
volume.h
volume2.h
volumeannotation.h
volumeannotations.h
volumes.h
volumeseriesinfo.h