namespaces.ts

namespace Vehicle {
  class Bike {
    user: User;
    constructor(public inputUser: User) {
      this.user = inputUser;
    }
    getName() {
      return this.user.name;
    }
  }
}
namespace Animal {
  class Lion {
    name: String;
    constructor(name: String) {
      this.name = name;
    }
    getName() {
      return this.name;
    }
  }
}