import type { AccessorFnColumnDef, AccessorKeyColumnDef, DisplayColumnDef, GroupColumnDef } from './types.js';
import type { DataTableV2RowData } from '../../public.api.js';
/**
 * Makes sure that a columnDef is a groupColumnDef
 * @internal
 */
export declare function isGroupColumnDef<TData extends DataTableV2RowData, TValue = unknown>(columnDef: any): columnDef is GroupColumnDef<TData, TValue>;
/**
 * Makes sure that a columnDef is a displayColumnDef
 * @internal
 */
export declare function isDisplayColumnDef<TData extends DataTableV2RowData, TValue = unknown>(columnDef: any): columnDef is DisplayColumnDef<TData, TValue>;
/**
 * Makes sure that the columnDef is a AccessorKeyColumnDef
 * @internal
 */
export declare function isAccessorKeyColumnDef<TData extends DataTableV2RowData, TValue = unknown>(columnDef: any): columnDef is AccessorKeyColumnDef<TData, TValue>;
/**
 * Makes sure that the columnDef is a AccessorFnColumnDef
 * @internal
 */
export declare function isAccessorFnColumnDef<TData extends DataTableV2RowData, TValue = unknown>(columnDef: any): columnDef is AccessorFnColumnDef<TData, TValue>;