In C# please

- Adjust the Withdrawl definition to include an optional parameter, called IsOutOfNetwork. This should be boolean, and have a default value of false.

- Create a PayMortgage definition that takes a Customer object as a parameter and returns a modified customer object back.

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks;

namespace Week3UnitTests.Data { public interface IUnitOfWork { void Deposit(int customerId, decimal amount);

void Withdrawal(int customerId, decimal amount);

decimal GetBalance(int customerId); } }