generics for template literal tag functions

generic.tag.function.ts

class Greeter<T>
{
    greeting: T;
    constructor(message: T) {
        this.greeting = message;
    }
    greet() {
        return this.greeting;
    }
}
  
class GreeterDecoder<T> extends Greeter<string>
{
    constructor(message: string) {
        super(message)
    }

    get(decoder: Function): string {
        return decoder`${this.greeting}`
    }

    greet() {
        return this.get(decodeURI).toString()
    }
}

let greeter = new Greeter<string>("Hello, world");
let greeterDecoder = new GreeterDecoder<string>("Hello&nbsp;world!");

console.log(greeter.greet());
console.log(greeterDecoder.greet());