Function instanceOf

instanceOf<Ctor>(ctor, options?): InstanceShape<Ctor>
Creates the class instance shape.
Type Parameters
- Ctor extends (new (...args: any[]) => any)
  The instance constructor.
Parameters
- ctor: Ctor
  The instance constructor.
- Optionaloptions: IssueOptions | Message
  The issue options or the issue message.
Returns InstanceShape<Ctor>