update interface.ts

hydro/model/system.ts

@@ -1,4 +1,5 @@
 import { FindOneAndUpdateOption } from 'mongodb';
+import { Dictionary } from 'lodash';
 import * as db from '../service/db';
 
 const coll = db.collection('system');
@@ -9,7 +10,7 @@ export async function get(_id: string) {
     return null;
 }
 
-export async function getMany(keys: string[]) {
+export async function getMany(keys: string[]): Promise<Dictionary<any>> {
     const docs = await coll.find({ _id: { $in: keys } }).toArray();
     const dict = {};
     const res = [];