Entity Framework Core Plus Query Future - Multi tables information scenario

// using Z.EntityFramework.Plus; // Don't forget to include this.
var ctx = new EntitiesContext();

var futureClient = ctx.Clients.DeferredFirst(x => x.ClientID = myClientID)
                                 .FutureValue();
var futureOrders = ctx.Orders.Where(x => x.ClientID = myClientID).Future();
var futureOrderDetails = ctx.OrderDetails.Where(x => x.ClientID = myClientID).Future();
var futureInvoices = ctx.Invoices.Where(x => x.ClientID = myClientID).Future();

// ONE database round trip is required
var client = futureClient.Value;
var orders = futureOrders.ToList();