How to implement an abstract method in Typescript

I have created the Controller abstract class with the abstract method executeImpl, once I instantiate it and run

const exampleController = new ExampleController;
exampleController.execute(req, res);

In the classes that I have extended this abstract class the executeImpl method is implemented

The error appears that:

TypeError: this.executeImpl is not a function

export abstract class Controller {
  protected abstract executeImpl(
    req: NextApiRequest,
    res: NextApiResponse
  ): void | any;

  public async execute(
    req: NextApiRequest,
    res: NextApiResponse
  ): Promise<void> {
    try {
      await this.executeImpl(req, res);
    } catch (err) {
      console.log(req.url);
      console.error(err);
    }
  }
}

It doesn’t seem to recognize it within this