import type { UnshiftableStream } from './unshiftable-readable-stream';
export declare const encoder: TextEncoder;
export declare const decoder: TextDecoder;
export declare function indexOfEol(arr: ArrayLike<number>, offset?: number): number;
export declare function concat(a: Uint8Array, b: Uint8Array): Uint8Array;
export declare function readUntilEol(reader: ReadableStreamDefaultReader<Uint8Array>, unshiftable: UnshiftableStream): Promise<string>;
export declare function flushBytes(controller: ReadableStreamDefaultController<Uint8Array>, numBytes: number, reader: ReadableStreamDefaultReader<Uint8Array>, unshiftable: UnshiftableStream): Promise<void>;