import SessionRepository from '../../business/data/repositories/SessionRepository'; import { Observable } from 'rxjs'; import Session from '../../business/models/Session'; import SessionDataAccess from './dataaccess/SessionDataAccess'; export default class SessionRepositoryImpl implements SessionRepository { private sessionDataAccess; constructor(sessionDataAccess: SessionDataAccess); getSession(): Observable; saveSession(session: Session): Observable; removeSession(): Observable; }