/**
 * Clones an object (copies "own properties") until `depth`, where:
 * - depth=0 returns non-object value, or empty object (`{}` or `[]`).
 * - depth=1 returns `obj` with its immediate children (but not their children).
 * - depth=2 returns `obj` with its children and their children.
 * - and so on...
 *
 * TODO: node's `util.inspect()` function is better, but doesn't work in web browser?
 *
 * @param obj Object to clone.
 * @param depth
 * @param omitKeys Omit properties matching these names (at any depth).
 * @param replacement Replacement for object whose fields extend beyond `depth`, and properties matching `omitKeys`.
 */
export declare function partialClone(obj: any, depth?: number, omitKeys?: string[], replacement?: any): any;
/**
 * Polyfill for Symbol.asyncDispose if not available in the runtime.
 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/asyncDispose
 */
export declare const ASYNC_DISPOSE_SYMBOL: symbol;