Add exports

src/index.ts

@@ -1,5 +1,10 @@
 // Database
-export { Stop } from './database/timetable'
+export { Corpus } from './database/corpus'
+export { Pis } from './database/pis'
+export { ReasonCode } from './database/reasonCode'
+export { Station } from './database/station'
+export { Service, Stop } from './database/timetable'
+export { User } from './database/user'
 
 // Downstream API