/**
 * Utility functions for request-executor
 *
 * Common helper functions used across executor submodules.
 */
/**
 * Get first non-empty string from candidates array
 */
export declare function firstNonEmptyString(candidates: unknown[]): string | undefined;
/**
 * Get first finite number from candidates array
 */
export declare function firstFiniteNumber(candidates: unknown[]): number | undefined;
/**
 * Extract HTTP status code from error object
 */
export declare function extractStatusCodeFromError(err: unknown): number | undefined;
/**
 * Resolve boolean from environment variable
 */
export declare function resolveBoolFromEnv(value: string | undefined, fallback: boolean): boolean;