/// <reference types="react" />
/*!
 * Copyright (c) Microsoft. All rights reserved.
 * Licensed under the MIT license. See LICENSE file in the project.
 */
import type { Step } from '@datashaper/workflow';
import type { IComboBox, IComboBoxOption } from '@fluentui/react';
import type { StepChangeFunction } from '../../types.js';
export type ComboBoxChangeHandler = (event: React.FormEvent<IComboBox>, option: IComboBoxOption | undefined, index: number | undefined, value?: string | undefined) => void;
/**
 * Creates a callback handler for changing the step based on a combobox value.
 * This only handles basic cases where the combobox option key can be set on the
 * step using an object path.
 */
export declare function useComboBoxChangeHandler<T extends object | void | unknown>(step: Step<T>, updateFn: (step: Step<T>, optionKey: string | number | undefined, value: string | undefined) => void, onChange?: StepChangeFunction<T>): ComboBoxChangeHandler;