/**
 * Streaming Utilities
 * Provides streaming support for large results
 */
export interface StreamOptions {
    chunkSize?: number;
    delayMs?: number;
    onProgress?: (progress: number, total: number) => void;
}
/**
 * Stream large text content in chunks
 * @param content - The text content to stream.
 * @param options - Streaming options (chunkSize, delayMs, onProgress).
 * @returns An async generator yielding string chunks.
 */
export declare function streamContent(content: string, options?: StreamOptions): AsyncGenerator<string, void, unknown>;
/**
 * Stream array results in batches
 * @param items - The array of items to stream.
 * @param options - Streaming options (chunkSize, delayMs, onProgress).
 * @returns An async generator yielding batches of items.
 */
export declare function streamArray<T>(items: T[], options?: StreamOptions): AsyncGenerator<T[], void, unknown>;
/**
 * Format streaming response with progress
 * @param chunks - The chunks to format.
 * @param metadata - Metadata with total and processed counts.
 * @param metadata.total - Total number of items.
 * @param metadata.processed - Number of items processed.
 * @returns A formatted string with progress indicator.
 */
export declare function formatStreamingResponse(chunks: string[], metadata: {
    total: number;
    processed: number;
}): string;
/**
 * Wrap a long-running operation with timeout
 * @param operation - The promise to wrap with a timeout.
 * @param timeoutMs - The timeout duration in milliseconds.
 * @param operationName - A name for the operation (used in error messages).
 * @returns The result of the operation.
 */
export declare function withTimeout<T>(operation: Promise<T>, timeoutMs: number, operationName?: string): Promise<T>;
/**
 * Truncate large results with summary
 * @param items - The array of items to truncate.
 * @param maxItems - Maximum number of items to keep.
 * @returns An object with truncated items and metadata.
 */
export declare function truncateResults<T>(items: T[], maxItems: number): {
    items: T[];
    truncated: boolean;
    total: number;
    shown: number;
};
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