import type { Uint8ArrayList } from "uint8arraylist";
export type ByteListLike = {
    byteLength: number;
    subarray(start?: number, end?: number): Uint8Array;
};
export declare const normalizeUint8Array: (bytes: unknown) => Uint8Array | undefined;
export declare const toUint8Array: (arr: Uint8Array | Uint8ArrayList | ByteListLike) => Uint8Array;
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