/**
 * The following code is modified based on
 * https://github.com/nanobrowser/nanobrowser/blob/master/chrome-extension/src/background/agent/prompts/base.ts
 *
 * Apache-2.0 License
 * Copyright (c) 2024 alexchenzl
 * https://github.com/nanobrowser/nanobrowser/blob/master/LICENSE
 */
import { HumanMessage, type SystemMessage } from '@langchain/core/messages';
import type { AgentContext } from '../types';
/**
 * Abstract base class for all prompt types
 */
declare abstract class BasePrompt {
    /**
     * Returns the system message that defines the AI's role and behavior
     * @returns SystemMessage from LangChain
     */
    abstract getSystemMessage(): SystemMessage;
    /**
     * Returns the user message for the specific prompt type
     * @param context - Optional context data needed for generating the user message
     * @returns HumanMessage from LangChain
     */
    abstract getUserMessage(context: AgentContext): Promise<HumanMessage>;
    /**
     * Builds the user message containing the browser state
     * @param context - The agent context
     * @returns HumanMessage from LangChain
     */
    buildBrowserStateUserMessage(context: AgentContext): Promise<HumanMessage>;
}
export { BasePrompt };
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