Implementing required properties

The implementation of protocol properties looks just the same as any other property declaration:

struct MarketingGuy: TalkativePerson 
{ 
   let name: String 
   var address: String 

   func sayHi() { 
      print("Yes, I'm \(name), here's my card. Say, may I blah  
      blah blah...") 
   } 
} 

The compiler will help you with two things here:

• It will not let you declare a { get set } property with let
• It will insist that the properties (just like the methods) are implemented