target es2020

tsconfig.json

@@ -12,9 +12,10 @@
         "../http-client"
       ]
     },
-    "useUnknownInCatchVariables": false
+    "useUnknownInCatchVariables": false,
+    "target": "es2020"
   },
   "include": [
     "./src"
   ]
-}
+}