code: func saveContext(db *sqlx.DB, in *dt.Msg) error {
  	if err := saveTimeContext(db, in); err != nil {
  		return err
  	}
  	if err := savePeopleContext(db, in); err != nil {
  		return err
  	}
  	return nil
  }
docs: // saveContext records context in the database across multiple categories.