service/main.ts

import service from './service';

service({
  name: 'my-service',
  description: 'This is my service',
  runner ({logger}) {
    logger.log('Running my service');
    const timer = setInterval(() => {
      logger.log('Still running');
    }, 5000);

    return () => {
      clearInterval(timer);
      logger.log('Stopped running');
    }
  }
})