# Functions
Connect connects to DATABASE_URL.
# Structs
DB is the storage for current DB.
Extra is user database model for Extra.
Library is user database model for Library.
Quiz is the database model for quiz.
Sentence caches sentences from http://www.jukuu.com/search.php?q=%s.
User holds user data.
UserMeta holds User's settings.
# Type aliases
StringArray type that is compat with both SQLite and PostGres.