/** Allowed sort dimensions for search results */
export type SortBy = 'timestamp' | 'importance';
export declare function encodeCursor(payload: {
    t: string;
    id: number;
} | {
    offset: number;
}): string;
export declare function decodeCursor(cursor: string): {
    t: string;
    id: number;
} | {
    offset: number;
} | null;
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