public void ExampleModification()
{
var customers = new CustomerGenerator().Generate(5);
var customersWithOneExtraAtBeginning = customers.Prepend(new Customer()
{
Id = 0
});
var customersWithOneExtraAtEnd = customers.Append(new Customer()
{
Id = 99
});
var allFiveCustomers = customers.DefaultIfEmpty();
var emptyCustomersArray = new Customer[0];
var containsNullCustomer = emptyCustomersArray.DefaultIfEmpty();
var containsOneDefaultCustomer = emptyCustomersArray.DefaultIfEmpty(new Customer());
}
