abstract member apply: Apply<'T> option with get, set
abstract member construct: Construct<'T> option with get, set
abstract member defineProperty: DefineProperty<'T> option with get, set
abstract member deleteProperty: DeleteProperty<'T> option with get, set
abstract member get: Get<'T> option with get, set
abstract member getPrototypeOf: ('T -> obj option) option with get, set
abstract member has: Has<'T> option with get, set
abstract member isExtensible: ('T -> bool) option with get, set
abstract member ownKeys: ('T -> ArrayLike<U2<string,Symbol>>) option with get, set
abstract member preventExtensions: ('T -> bool) option with get, set
abstract member set: Set2<'T> option with get, set
abstract member setPrototypeOf: SetPrototypeOf<'T> option with get, set