Struct not calling property observers on new object

In this code, I would like to have the property observers called when the new object is created. How do I achieve this?

Here is what I have so far:

struct MyStruct {
    var myValue: Int {
        willSet {
            print("willSet")
        }
        didSet {
            print("didSet")
        }
    }
}

var abc = MyStruct(myValue: 3) // Does not use property observers
abc.myValue = 5 // Calls property observers

You can construct a custom initializer as follows.

struct MyStruct {
    var myValue: Int {
        willSet {
            print("willSet")
        }
        didSet {
            print("didSet")
        }
    }

    init(value: Int) {
        myValue = value
        // print something here
    }
}

var abc = MyStruct(value: 3) 
abc.myValue = 5