createUnrefFn 
Make a plain function accepting ref and raw values as arguments. Returns the same value the unconverted function returns, with proper typing.
TIP
Make sure you're using the right tool for the job. Using reactify might be more pertinent in some cases where you want to evaluate the function on each changes of it's arguments.
Usage 
ts
import { createUnrefFn } from '@vueuse/core'
import { shallowRef } from 'vue'
const url = shallowRef('https://httpbin.org/post')
const data = shallowRef({ foo: 'bar' })
function post(url, data) {
  return fetch(url, { data })
}
const unrefPost = createUnrefFn(post)
post(url, data) /* ❌ Will throw an error because the arguments are refs */
unrefPost(url, data) /* ✔️ Will Work because the arguments will be auto unref */Type Declarations 
ts
export type UnrefFn<T> = T extends (...args: infer A) => infer R
  ? (
      ...args: {
        [K in keyof A]: MaybeRef<A[K]>
      }
    ) => R
  : never
/**
 * Make a plain function accepting ref and raw values as arguments.
 * Returns the same value the unconverted function returns, with proper typing.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare function createUnrefFn<T extends Function>(fn: T): UnrefFn<T>