/**
 * Compatibility Layer for Node.js 0.8+
 * Local to this package - contains only needed functions.
 */
/**
 * Create a buffer from string, array, or existing buffer
 * - Uses Buffer.from() on Node 4.5+
 * - Falls back to new Buffer() on Node 0.8-4.4
 */
export declare function bufferFrom(data: string | number[] | Buffer | Uint8Array, encoding?: BufferEncoding): Buffer;