set struct or class field via Reflection

Hi, let's say I have a struct like the following:

           struct Item {
                var text = ""
            }

I want to access the field by string and then set its value to some other string. I was able to access the property value through a Mirror:

let item = Item()
let mirroredObject = Mirror(reflecting: item)
for (_, var attr) in mirroredObject.children.enumerated() {
          attr.value = "Hello World!"
}

The problem is that setting the value of the struct field with attr.value doesn't really change its value... In python I was used to do something like:

setattr(item, "text", "Hello World!")

Is there any way to achieve the same result with Apple Swift? Thanks.