import { AbsentCellValue, CellValue, ColumnType, MaybeAbsentCellValue } from '../types';
export declare const isAbsentCellValue: (cellValue: MaybeAbsentCellValue) => cellValue is AbsentCellValue;
/**
 * Check if a cell value can be treated as if it was absent. This includes
 * _actual_ absence (null, undefined) as well as the empty string, the empty
 * array, and NaN. Note that this isn't type guarded because NaN has type
 * `number` which means that we can't correctly "split" the cell value type.
 */
export declare const isEmptyCellValue: (cellValue: MaybeAbsentCellValue) => boolean;
export declare const getIsEmpty: (value: any) => boolean;
export declare const convertMaybeCollaboratorCellValueToGroupIdArray: (value: MaybeAbsentCellValue<ColumnType.CREATED_BY | ColumnType.COLLABORATOR>) => CellValue<ColumnType.COLLABORATOR>;