import type { MinifiedErrorOutput, MinifiedMimePayload, MinifiedOutput, MinifiedStreamOutput } from './types.js';
export declare const MAX_CHARS = 25000;
export declare const TRUNCATED_CHARS_COUNT = 64;
export declare function DEFAULT_HASH_WARNING(content: string): string;
export declare function isNotNull<T>(arg: T | null): arg is T;
export declare function ensureSafePath(path: string): string;
/**
 * Given a list of minified outputs, perform a function on each
 *
 * This function traverses into mime outputs which may have multiple outputs included together.
 */
export declare function walkOutputs(outputs: MinifiedOutput[], func: (obj: MinifiedStreamOutput | MinifiedErrorOutput | MinifiedMimePayload) => void): void;
export declare function ensureString(maybeString: string[] | string | undefined, joinWith?: string): string;