/**
 * Test Retry for Flaky Tests
 */
import type { TestResult } from './types';
export type BackoffStrategy = 'fixed' | 'linear' | 'exponential';
export type RetryableError = 'adapter_error' | 'timeout' | 'rate_limit' | 'assertion_failed' | 'unknown';
export interface RetryConfig {
    retries: number;
    retry_delay_ms?: number;
    backoff?: BackoffStrategy;
    retry_on?: RetryableError[];
    skip_on?: RetryableError[];
}
/**
 * Classify a test failure into an error category.
 */
export declare function classifyError(result: TestResult): RetryableError;
/**
 * Determine if a failed result should be retried based on config.
 */
export declare function shouldRetry(result: TestResult, config: RetryConfig): boolean;
/**
 * Compute delay for a given attempt using backoff strategy.
 */
export declare function computeBackoffDelay(attempt: number, baseDelay: number, strategy?: BackoffStrategy): number;
export interface RetryResult extends TestResult {
    attempts?: number;
    attemptResults?: TestResult[];
}
/**
 * Run a test function with retry support.
 * Returns the final result with attempt info.
 */
export declare function withRetry(runFn: () => Promise<TestResult>, config: RetryConfig): Promise<RetryResult>;
/**
 * Format retry info for display.
 */
export declare function formatRetryInfo(result: RetryResult): string;
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