export interface IGroupingState {
    selectedRowIds: Set<number>;
    itemIds: number[];
    checkAreAllRowsSelected(): boolean;
    selectRow(id: number): IGroupingState;
    clearRows(_itemIds: number[]): IGroupingState;
    isRowSelected(id: number): boolean;
    selectAllRows(): IGroupingState;
    getSelectedRows(): number[];
    getSelectedRowsCount(): number;
}
export declare class GroupingState implements IGroupingState {
    selectedRowIds: Set<number>;
    itemIds: number[];
    checkAreAllRowsSelected(): boolean;
    selectRow(id: number): GroupingState;
    clearRows(_itemIds: number[]): GroupingState;
    isRowSelected(id: number): boolean;
    selectAllRows(): GroupingState;
    getSelectedRows(): number[];
    getSelectedRowsCount(): number;
}
export interface IGroupingView {
    grouping: GroupingState;
    ngOnInit(): void;
}