fixes: linting errors.

src/service/CacheService.ts

@@ -92,7 +92,7 @@ export class CacheService {
      * Get all key-value pairs from the Redis cache.
      * This method is not recommended for large databases, as it will load all key-value pairs into memory and be slow.
      * However, it is useful for notification caching, where the database is expected to be small to get the missing notifications.
-     * @return {Promise<{ [key: string]: string }>} - A promise that resolves to an object containing all key-value pairs in the cache.
+     * @returns {Promise<{ [key: string]: string }>} - A promise that resolves to an object containing all key-value pairs in the cache.
      * @memberof CacheService
      */
     async read_whole_database(): Promise<{ [key: string]: string }> {

src/utils/FetchUtil.ts

@@ -1,6 +1,16 @@
 import { Readable } from "stream"
 import { CacheService } from "../service/CacheService";
 const cache_service = new CacheService();
+/**
+ * Fetches the members from the cache service between the specified dates.
+ * @param {{
+ *     from?: Date,
+ *     until?: Date,
+ * }} [opts] - The options for the fetch.
+ * @param {Date} [opts.from] - The start date.
+ * @param {Date} [opts.until] - The end date.
+ * @returns {Promise<Readable>} - A promise that resolves to a readable stream of the members.
+ */
 export async function getMembers(opts?: {
     from?: Date,
     until?: Date,