/**
 * 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 type { FlowSurfacePlanStepLink } from './types';
export declare function isFlowSurfacePlanStepValue(input: any): input is FlowSurfacePlanStepLink;
export declare function normalizeFlowSurfacePlanStepValue(actionName: string, input: any, fieldName: string): FlowSurfacePlanStepLink;
export declare function throwUnsupportedFlowSurfaceDollarRef(actionName: string, path: string, allowed: string): never;
export declare function throwUnsupportedFlowSurfaceRef(actionName: string, path: string, allowed: string): never;
export declare function assertNoFlowSurfaceLegacyRef(input: any, options: {
    actionName: string;
    path: string;
    dollarRefAllowed?: string;
    refAllowed?: string;
}): void;