/**
 * Binary data conversion helpers.
 *
 * @module
 */
/**
 * Converts string or binary data to a `Uint8Array`.
 * Strings are UTF-8 encoded. `Uint8Array` inputs are returned as-is.
 *
 * @returns `Uint8Array` view of the data
 */
export declare const to_bytes: (data: Uint8Array | BufferSource | string) => Uint8Array;
/**
 * Formats a byte count as a human-readable string.
 *
 * @returns formatted string like `'1.2 KB'` or `'3.4 MB'`
 */
export declare const format_bytes: (n: number) => string;
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