Type for Constructor of a Class in TypeScript

  type InputComponentConstructor<T = MediaSectionInput | TextSectionInput> = {
    new(): T;
  }

  type ConstructorType<T> = new (...args : any[]) => T;

  interface AnimalConstructor {
    new ( speakTerm : string, name : string, legs: number ) : Animal;
  }

  interface ClockConstructor {
    new (hour: number, minute: number): ClockInterface;
  }