import type { PositionGridCell } from "../../types.js";
import type { DataRect } from "../types.js";
/**
 * Returns the smallest `DataRect` that covers both cell positions `a` and `b`,
 * accounting for span extents on either cell.
 */
export declare function rectFromGridCellPositions(a: PositionGridCell, b: PositionGridCell): DataRect;