import { createStep } from '../utils/steps.js';
import { StepOptions } from '../types/pipeline.js';
import { z } from 'zod';
import { LanguageModel } from 'ai';
/**
 * Format options for summary output
 */
export type SummaryFormat = 'paragraph' | 'bullet' | 'structured';
/**
 * Schema for structured summary output
 */
declare const structuredSummarySchema: z.ZodObject<{
    summary: z.ZodString;
    keyPoints: z.ZodArray<z.ZodString, "many">;
    sources: z.ZodOptional<z.ZodArray<z.ZodString, "many">>;
    sections: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodString>>;
}, "strip", z.ZodTypeAny, {
    summary: string;
    keyPoints: string[];
    sources?: string[] | undefined;
    sections?: Record<string, string> | undefined;
}, {
    summary: string;
    keyPoints: string[];
    sources?: string[] | undefined;
    sections?: Record<string, string> | undefined;
}>;
export type StructuredSummary = z.infer<typeof structuredSummarySchema>;
/**
 * Options for the summarization step
 */
export interface SummarizeOptions extends StepOptions {
    /** Maximum length of the generated summary (characters) */
    maxLength?: number;
    /** Model to use for summarization (from the AI SDK) */
    llm?: LanguageModel;
    /** Temperature for the LLM generation (0.0 to 1.0) */
    temperature?: number;
    /** Format for the summary (paragraph, bullet, structured) */
    format?: SummaryFormat;
    /** Focus areas for the summary (aspects to emphasize) */
    focus?: string | string[];
    /** Whether to include citations in the summary */
    includeCitations?: boolean;
    /** Whether to add the summary to the final results */
    includeInResults?: boolean;
    /** Custom prompt for summary generation */
    customPrompt?: string;
    /** Additional instructions for summary generation */
    additionalInstructions?: string;
    /** Retry configuration for LLM calls */
    retry?: {
        /** Maximum number of retries */
        maxRetries?: number;
        /** Base delay between retries in ms */
        baseDelay?: number;
    };
}
/**
 * Creates a summarization step for the research pipeline
 *
 * @param options Configuration options for summarization
 * @returns A summarization step for the research pipeline
 */
export declare function summarize(options?: SummarizeOptions): ReturnType<typeof createStep>;
export {};