/**
 * Smart Context Window Management Pattern
 *
 * Automatically manages context token limits by truncating, summarizing,
 * or chunking content to prevent context_length_exceeded errors.
 *
 * @example
 * ```typescript
 * import { smartContextWindow, ContextStrategy } from 'ai-patterns';
 *
 * const result = await smartContextWindow({
 *   execute: async (messages) => {
 *     return await generateText({
 *       model: openai('gpt-4-turbo'),
 *       messages
 *     });
 *   },
 *   messages: conversationHistory,
 *   maxTokens: 120000,
 *   strategy: ContextStrategy.SLIDING_WINDOW,
 *   keepRecentCount: 50
 * });
 * ```
 */
import type { SmartContextWindowConfig, SmartContextWindowResult, Message } from "../types/context-window";
/**
 * Smart context window management
 */
export declare function smartContextWindow<TResult = any>(config: SmartContextWindowConfig<TResult>): Promise<SmartContextWindowResult<TResult>>;
/**
 * Helper function to create a summarizer using an AI model
 */
export declare function createAISummarizer(summarizeFn: (messages: Message[]) => Promise<string>): (messages: Message[]) => Promise<string>;
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