/**
 * Sets a value at a specified path within an object. Creates nested structures
 * (arrays or objects) as needed to set the value at the correct location. Supports
 * deleting the key if the value is `undefined` and the `deleteIfUndefined` flag is set to `true`.
 * @template T - The type of the object to modify.
 * @template K - The type of the value to set.
 * @param object - The object to modify. The object is mutated directly.
 * @param path - The path (dot or bracket notation) where the value should be set.
 * @param value - The value to set at the specified path.
 * @param deleteIfUndefined - A boolean indicating whether to delete the key if the value is `undefined` (default: `false`).
 * @returns The modified object.
 */
export default function set<T extends object, K>(object: T, path: string, value: K, deleteIfUndefined?: boolean): T;