How can I use `onSettled` in the `experimental_createTRPCNextAppDirClient`?

const searchMandate = api.mandate.search.useMutation({
    onSettled: (data) => {
      searchQueryMethods.reset();
      data?.length
        ? toast.success(`Found ${data?.length} companies.`)
        : toast.message("No companies found.");
    },
  });