chore(metrics): improve metrics types and typedocs (#1417)

* chore: update types & comments

* chore: add consoleSpy, remove aws-sdk

* chore: added typedoc to all private method

Author: dreamorosi

package-lock.json

@@ -34,6 +34,7 @@
   "types": "./lib/index.d.ts",
   "typedocMain": "src/index.ts",
   "devDependencies": {
+    "@aws-sdk/client-cloudwatch": "^3.316.0",
     "@types/promise-retry": "^1.1.3",
     "promise-retry": "^2.0.1"
   },