import * as React from 'react';
/**
 * Premium implementation of the `useColumnHeaderAdornment` configuration hook:
 * the A1 column-letter shown next to each data column's header title. The
 * adornment hook is used instead of wrapping `colDef.renderHeader` because
 * aggregation already reserves the `renderHeader` wrapping for its own header
 * decoration.
 *
 * Returns `null` (and so renders nothing, and crucially does not subscribe to
 * the position context) whenever A1 notation is inactive, so the common
 * feature-off path adds no header re-renders. The subscription lives inside
 * `GridFormulaColumnHeaderLetter`, which only mounts when A1 is active.
 */
export declare function useGridFormulaColumnHeaderAdornment(field: string): React.ReactNode;