new CssProperty<T, U>(options: CssPropertyOptions<T, U>): CssProperty<T, U>;

readonly cssLocalName: string;

readonly cssName: string;

protected readonly cssValueDescriptor: PropertyDescriptor;

readonly defaultValue: U;

readonly defaultValueKey: symbol;

readonly getDefault: symbol;

isStyleProperty: boolean;

readonly key: symbol;

protected readonly localValueDescriptor: PropertyDescriptor;

readonly name: string;

overrideHandlers: (options: CssPropertyOptions<T, U>) => void;

readonly setNative: symbol;

readonly sourceKey: symbol;

isSet(instance: T): boolean;

register(cls: {
  prototype: T;
}): void;