public async Task <BookingRecord> FindAsync(Guid id)
{
ConditionalValue <Models.BookingRecord> result;
var dictionary = await stateManager.GetAllBookingsAsync();
using (var transaction = stateManager.CreateTransaction())
{
result = await dictionary.TryGetValueAsync(transaction, id);
await transaction.CommitAsync();
}
return(result.HasValue ? result.Value.ToDomainModel() : null);
}