import { WritableSignal } from "@angular/core";
export declare class SdSortingManager {
    private readonly _options;
    constructor(_options: {
        sorts: WritableSignal<ISdSortingDef[]>;
    });
    defMap: import("@angular/core").Signal<Map<string, {
        indexText: string | undefined;
        desc: boolean;
    }>>;
    toggle(key: string, multiple: boolean): void;
    sort<T>(items: T[]): T[];
}
export interface ISdSortingDef {
    key: string;
    desc: boolean;
}