Function Mutation

packages/react-query/src/__tests__/mutationOptions.test.tsx:52–60

()

    }

    function Mutation() {
      const { mutate } = useMutation(mutationOpts)

      return (
        <div>
          <button onClick={() => mutate()}>mutate</button>
        </div>
      )
    }

    function Page() {
      return (