export declare const empty: Uint8Array<ArrayBuffer>;
export declare function toHex(d: Uint8Array): string;
export declare function fromHex(hex: string): Uint8Array<ArrayBuffer>;
export declare function equals(aa: Uint8Array, bb: Uint8Array): boolean;
/**
 * Normalize binary input to a plain `Uint8Array` backed by an `ArrayBuffer`.
 *
 * Returns the input itself when it is already a plain `Uint8Array` over an
 * `ArrayBuffer`, otherwise a fresh view (or, for `SharedArrayBuffer`-backed
 * input, a copy) over the same bytes.
 *
 * Throws if input is not a recognised binary type.
 */
export declare function coerce(o: ArrayBufferView | ArrayBuffer | Uint8Array): Uint8Array<ArrayBuffer>;
export declare function isBinary(o: unknown): o is ArrayBuffer | ArrayBufferView;
export declare function fromString(str: string): Uint8Array<ArrayBuffer>;
export declare function toString(b: Uint8Array): string;
/**
 * Ensures `b` is backed by an ArrayBuffer - if not a new Uint8Array will be
 * created and the contents of `b` copied into it.
 */
export declare function toArrayBufferBackedArray(b: Uint8Array): Uint8Array<ArrayBuffer>;
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