private static void Main(string[] args)
{
if (args is null)
{
throw new ArgumentNullException(nameof(args));
}
var person = new PersonBuilder()
.Called("John")
.WorksAs("Developer")
.WithAge(20)
.Build();
Console.WriteLine(person);
}
public static PersonBuilder WithAge(this PersonBuilder builder, int age) => builder.Do(p => p.Age = age);
public static PersonBuilder WorksAs(this PersonBuilder builder, string position) => builder.Do(p => p.Position = position);
