import type { GridRowId } from '@mui/x-data-grid-pro';
import type { RefObject } from '@mui/x-internals/types';
import type { GridPrivateApiPremium } from "../../../models/gridApiPremium.js";
interface GridFormulaFillCell {
  id: GridRowId;
  field: string;
}
/**
 * Computes the value to fill into `targetCell` when the fill handle drags
 * `sourceCell`. When the source is a live formula and the target column accepts
 * formulas, the formula's relative references are shifted by the source→target
 * positional delta (Excel fill semantics) and the adjusted canonical source is
 * returned. In every other case it returns `null`, and the caller copies the
 * source cell's evaluated value as before.
 *
 * Returns `null` when:
 * - the target column is not `allowFormulas` — a `=…` string there would be
 *   inert literal text, so the evaluated value is copied instead;
 * - the source cell is not a live, evaluated formula (`getCellFormulaResult`
 *   covers `allowFormulas`, `disableFormulas`/`dataSource`/pivot, and a real `=`
 *   value, and rejects a literal `=text` parked in a non-formula column).
 *
 * When the source is a formula but cannot be adjusted (parse error, or a cell
 * outside the position context such as a group/pinned row), the original
 * canonical source is returned unchanged so the formula is never dropped.
 */
export declare function getFilledFormulaSource(apiRef: RefObject<GridPrivateApiPremium>, sourceCell: GridFormulaFillCell, targetCell: GridFormulaFillCell): string | null;
export {};