function property(options) {
    // tslint:disable-next-line:no-any decorator
    return (protoOrDescriptor, name) => (name !== undefined) ?
        legacyProperty(options, protoOrDescriptor, name) :
        standardProperty(options, protoOrDescriptor);
}
A property decorator which creates a LitElement property which reflects a
corresponding attribute value. A `PropertyDeclaration` may optionally be
supplied to configure property features.

@ExportDecoratedItems