npm run format

karma.conf.cjs

@@ -1,24 +1,24 @@
-const { createDefaultConfig } = require('@open-wc/testing-karma');
+const {createDefaultConfig} = require('@open-wc/testing-karma');
 const merge = require('deepmerge');
 
-module.exports = config => {
+module.exports = (config) => {
   config.set(
     merge(createDefaultConfig(config), {
       frameworks: ['mocha', 'chai'],
       client: {
-        mocha: {ui: 'tdd'}
+        mocha: {ui: 'tdd'},
       },
       files: [
         {
           pattern: config.grep ? config.grep : 'test/**/*_test.js',
-          type: 'module'
+          type: 'module',
         },
       ],
       // See the karma-esm docs for all options
       esm: {
         nodeResolve: true,
       },
-    }),
+    })
   );
   return config;
 };