import type { Row } from 'react-table';
export type RowSpanHeaders = Array<{
    cellIndex: number;
    cellValue: string;
    id: string;
}>;
export default function useRowSpan(hooks: any): void;
export declare function prepareRowSpan<T extends object>(rows: Array<Row<T>>, index: number, rowSpanHeaders: RowSpanHeaders, groupKey?: keyof T): void;
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