import { NumberInput } from '@ngx-simple/core/coercion';
import { SimSelectionDirective } from '@ngx-simple/simple-ui/selection';
/**
 * Applies `mat-selected` class and `aria-selected` to an element.
 *
 * Must be used within a parent `MatSelection` directive.
 * Must be provided with the value. The index is required if `trackBy` is used on the `CdkSelection`
 * directive.
 */
export declare class SimRowSelectionDirective<T> {
    readonly _selection: SimSelectionDirective<T>;
    static ngAcceptInputType_index: NumberInput;
    /** 与行关联的值 */
    value: T;
    /** 列表中值的索引。与`trackBy`一起使用时需要 */
    get index(): number | undefined;
    set index(index: number | undefined);
    private _index;
    constructor(_selection: SimSelectionDirective<T>);
}