import { ColumnGlideInstance, ColumnGroupGlideInstance, ColumnOrColumnGroupGlideInstance } from './type';
import { ObjectForExtending } from '../types/utils.type';

export declare function isNotGroup<R extends ObjectForExtending, SR>(column: ColumnOrColumnGroupGlideInstance<R, SR>): column is ColumnGlideInstance<R, SR>;
export declare function isGroupColumn<R extends ObjectForExtending, SR>(column: ColumnOrColumnGroupGlideInstance<R, SR>): column is ColumnGroupGlideInstance<R, SR>;