/**
 * Determines if a value is a non-null object (including arrays and other built-in objects).
 * This check matches TypeScript's `object` type which excludes primitives and `null`.
 *
 * Examples:
 * - `isObjectLike({})` returns `true`
 * - `isObjectLike([])` returns `true`
 * - `isObjectLike(null)` returns `false`
 * - `isObjectLike(42)` returns `false`
 */
export declare function isObjectLike(data: unknown): data is object;
/**
 * Checks if a value is a pure Uint8Array instance, explicitly excluding Node.js Buffers.
 * This distinction is important because while Buffers are Uint8Array instances in Node.js,
 * they often require different handling in cryptographic and binary data contexts.
 *
 * The check avoids `instanceof` due to potential cross-realm issues and uses
 * `Object.prototype.toString` for reliable type checking.
 *
 * Examples:
 * - `isUint8Array(new Uint8Array())` returns `true`
 * - `isUint8Array(Buffer.from(''))` returns `false`
 */
export declare function isUint8Array(data: unknown): data is Uint8Array;