/** Merges "own" properties from a source to a destination object, including non-enumerable and accessor-defined properties. It retains original values and descriptors, ensuring the destination receives a complete and accurate copy of the source's properties. @param destination - The object to receive properties. @param source - The object providing properties. @param overwrite - Optional boolean to control overwriting of existing properties. Defaults to true. @returns The modified destination object. */ declare function mergeDescriptors(destination: T, source: U, overwrite?: boolean): T & U; export = mergeDescriptors;