import { createStep } from '../utils/steps.js';
import { StepOptions } from '../types/pipeline.js';
import { z } from 'zod';
import { LanguageModel } from 'ai';
/**
 * Schema for fact check results
 */
declare const factCheckResultSchema: z.ZodObject<{
    statement: z.ZodString;
    isValid: z.ZodBoolean;
    confidence: z.ZodNumber;
    evidence: z.ZodOptional<z.ZodArray<z.ZodString, "many">>;
    sources: z.ZodOptional<z.ZodArray<z.ZodString, "many">>;
    corrections: z.ZodOptional<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    statement: string;
    isValid: boolean;
    confidence: number;
    evidence?: string[] | undefined;
    sources?: string[] | undefined;
    corrections?: string | undefined;
}, {
    statement: string;
    isValid: boolean;
    confidence: number;
    evidence?: string[] | undefined;
    sources?: string[] | undefined;
    corrections?: string | undefined;
}>;
export type FactCheckResult = z.infer<typeof factCheckResultSchema>;
/**
 * Options for the fact checking step
 */
export interface FactCheckOptions extends StepOptions {
    /** Minimum confidence threshold for validation (0.0 to 1.0) */
    threshold?: number;
    /** Model to use for fact checking (from the AI SDK) */
    llm?: LanguageModel;
    /** Whether to include evidence in the output */
    includeEvidence?: boolean;
    /** Whether to include fact check results in the final results */
    includeInResults?: boolean;
    /** Specific statements to check (if empty, will extract from content) */
    statements?: string[];
    /** Maximum number of statements to check */
    maxStatements?: number;
    /** Custom prompt for the fact-checking LLM */
    customPrompt?: string;
    /** Temperature for the LLM (0.0 to 1.0) */
    temperature?: number;
    /** Retry configuration for LLM calls */
    retry?: {
        /** Maximum number of retries */
        maxRetries?: number;
        /** Base delay between retries in ms */
        baseDelay?: number;
    };
    /** Whether to continue if some statements fail to check */
    continueOnError?: boolean;
    /** Whether to continue even if zero extracted content is available */
    allowEmptyContent?: boolean;
}
/**
 * Creates a fact checking step for the research pipeline
 *
 * @param options Configuration options for fact checking
 * @returns A fact checking step for the research pipeline
 */
export declare function factCheck(options?: FactCheckOptions): ReturnType<typeof createStep>;
export {};