///
///
//@Filename: file.tsx
// @jsx: preserve
// @noLib: true
//// declare module JSX {
//// interface Element { }
//// interface IntrinsicElements {
//// }
//// interface ElementAttributesProperty { props; }
//// }
//// interface OptionPropBag {
//// propx: number
//// propString: string
//// optional?: boolean
//// }
//// declare function Opt(attributes: OptionPropBag): JSX.Element;
//// let opt = ;
verify.singleReferenceGroup("(property) wrong: true");