declare const indexSymbol: unique symbol;
export { indexSymbol };
/**
 * Sentinel symbol representing the bulk selection feature.
 * Set as `selectedItems` when user clicks the footer "Select all items" button.
 * The total count is provided via the `allItemsCount` property.
 */
export declare const All: unique symbol;
export type TAll = typeof All;
export type TSelection<T = unknown> = T[] | TAll;
export declare const findLastIndex: (array: (number | undefined)[], predicate: (prop: number | undefined, index?: number, array?: (number | undefined)[]) => boolean) => number;
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