igniteui-webcomponents/components/combo/operations/group.d.ts

Ignite UI for Web Components is a complete library of UI components, giving you the ability to build modern web applications using encapsulation and the concept of reusable components in a dependency-free approach.

import type { DataState } from '../controllers/data.js';
import type { ComboRecord } from '../types.js';
export default class GroupDataOperation<T extends object> {
    apply(data: ComboRecord<T>[], controller: DataState<T>): ComboRecord<T>[];
}