next js how to get grid->ref

[jijoungsoo]

import dynamic from "next/dynamic" const Grid = dynamic(() => import("@toast-ui/react-grid"), { ssr: false })

const gridRef = useRef(null); <Grid ref={gridRef}>

but I can't use this code because i show [ref] is not attribute

so gridRef.current.getInstance();

How can I use Grid Instance?

help me !