import Librus from 'librusjs'
// or const Librus = require('librusjs').default

Librus("username", "password")
.then( (session) => {
  session.getLuckyNumber().then( (num) => /* ... */);

  session.getAccountInfo().then( (accInfo) => /* ... */);

  session.getGrades().then( (grades) => /* ... */);

  // getMostRecent?: boolean, lastXDays?: number
  // both are optional, add to output
  // most recently added grade and grades from last 7 days
  session.getGrades(true, 7).then( (grades) => /* ... */);

  // current week + includes school free days
  session.getTimetable().then( (timetable) => /* ... */);

  // optional - get timetable from other week
  session.getTimetable("2022-06-20").then( (timetable) => /* ... */);
})
.catch( (err) => {
  // Failed to auth!
  console.log(err);
});