added / fixed some types

tsconfig.json

@@ -1,5 +1,10 @@
 {
   "compilerOptions": {
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns":true,
+    "noFallthroughCasesInSwitch": true,
+    "suppressImplicitAnyIndexErrors": true,
     "moduleResolution": "node",
     "esModuleInterop": true,
     "target": "es6",
@@ -9,7 +14,7 @@
     "preserveConstEnums": true,
     "sourceMap": true,
     "outDir": "dist",
-    "noImplicitAny": false,
+    "noImplicitAny": true,
     "lib": [
       "ES2020"
     ]