/**
 * @module botbuilder-m365
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { TurnContext } from 'botbuilder';
import { TurnState } from './TurnState';
export type PromptTemplate = string | ((context: TurnContext, state: TurnState) => Promise<string>);
export interface PromptParserOptions {
    conversationHistory?: {
        maxCharacterLength?: number;
        lineSeparator?: string;
    };
}
export declare class PromptParser {
    static expandPromptTemplate(context: TurnContext, state: TurnState, prompt: PromptTemplate, options?: PromptParserOptions): Promise<string>;
    static lookupPromptVariable(context: TurnContext, state: TurnState, variableName: string, options?: PromptParserOptions): string;
}
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