//@filename: file.tsx
//@jsx: preserve
declare module JSX {
	interface Element { }
	interface IntrinsicElements {
		test1: { "data-foo"?: string };
	}
}

// Error
<test1 data-foo={32} />;

// OK
<test1 data-foo={'32'} />;
<test1 data-bar={'32'} />;
<test1 data-bar={32} />;