/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */
import { FlowModel } from '@nocobase/flow-engine';
import { BlockGridModel } from '../../base';
export declare function getDefaultOperator(model: any): any;
/**
 * 判断筛选值是否为空
 *
 * 专门用于筛选器场景的空值判断，不会将 boolean 类型视为空值
 *
 * @param value - 要判断的值
 * @returns 如果值为空则返回 true，否则返回 false
 */
export declare function isFilterValueEmpty(value: any): boolean;
export declare function getAllDataModels(gridModel: BlockGridModel): FlowModel[];
