text: import Singleton from './db/SingletonObservableDataSet';
  
  export const getPricesFromDB = async () => Singleton.getInstance().getAll();
  
  export const saveNewPricesToDB = async (newPrices) => Singleton.getInstance().add(newPrices);
  
  export const addObserver = (observer) => Singleton.getInstance().addObserver(observer);
  