@custom-elements-manifest/analyzer/fixtures/02-inheritance/01-superclass/package/BatchingElement.js

<!-- [=> See Source <=](../../docs/analyzer/index.md) -->

export class BatchingElement extends HTMLElement {
  superClassField;
  static observedAttributes = [...super.observedAttributes, 'superClass-attr'];
  superClassMethod() {
    this.dispatchEvent(new Event('superClass-event'))
  }

  constructor() {
    super();
    this.overriddenField = 'hello';
  }
}