/// <summary>
/// Request Data And Save them To Cache
/// </summary>
/// <param name="page">page number in remote repository</param>
/// <returns>List of movie data items</returns>
private async Task <List <IMovieItem> > RequestDataAndSaveToCache(int page)
{
var newItems = await _remoteDataService.GetItemsAtAsync(page);
await _cacheService.InsertOrReplaceItemsAsync(newItems);
return(newItems);
}