export default function invariant ( value , message ? ) ; export default function invariant < T > ( value , message ? ) ; export default function invariant ( value , message ? ) { if ( value === false || value === null || typeof value === "undefined" ) { console . error ( "The following error is a bug in Remix; please open an issue! https://github.com/remix-run/remix/issues/new" ) ; throw new Error ( message ) ; } }