export interface RowUpdate {
    id: string;
    changes: Record<string, unknown>;
}
/**
 * Computes the minimal set of row updates needed when only values have changed
 * (same row count, same row IDs in the same order).
 *
 * Returns an array of updates (possibly empty) when the diff is value-only, or
 * `null` when a structural change is detected (different count, different IDs
 * in sequence, or initial load from an empty snapshot).
 *
 * Used by the DataGrid component to decide whether to call `grid.updateRows()`
 * (value-only, fast path) or `grid.rows =` (full replace). Kept as a pure
 * helper so it can be unit-tested without React.
 *
 * @since 3.5.0
 */
export declare function computeRowDiff<T>(next: T[], prev: T[], getId: (row: T) => string): RowUpdate[] | null;
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