fixed the search, did know why it broke

src/index.ts

@@ -1,15 +1,9 @@
 import { City } from "./types/city";
 import { searchCity } from "./search";
 
-import * as cities from "./cities.json";
-
-export const searchOne = async (
-  needle: string,
-): Promise<{ item: City; refIndex: number }> => {
-  return searchCity(cities, needle)[0];
+export const searchOne = (needle: string): { item: City; refIndex: number } => {
+  return searchCity(needle)[0];
 };
-export const search = async (
-  needle: string,
-): Promise<{ item: City; refIndex: number }[]> => {
-  return searchCity(cities, needle);
+export const search = (needle: string): { item: City; refIndex: number }[] => {
+  return searchCity(needle);
 };

src/search.ts

@@ -1,8 +1,9 @@
 import Fuse from "fuse.js";
 import { City } from "./types/city";
 
-export const searchCity = (cities: City[], input: string) => {
-  const fuse = new Fuse(cities, {
+import cityData from "./cities.json";
+export const searchCity = (input: string): Fuse.FuseResult<City>[] => {
+  const fuse = new Fuse(cityData, {
     keys: ["title"],
   });
   return fuse.search(input);