docs: describe the typing utility

Author: Joris Conijn

docs/content/index.mdx

@@ -66,6 +66,7 @@ Utility | Description
 [Metrics](./core/metrics) | Custom Metrics created asynchronously via CloudWatch Embedded Metric Format (EMF)
 [Bring your own middleware](.//utilities/middleware_factory) | Decorator factory to create your own middleware to run logic before, and after each Lambda invocation
 [Parameters utility](./utilities/parameters) | Retrieve parameter values from AWS Systems Manager Parameter Store, AWS Secrets Manager, or Amazon DynamoDB, and cache them for a specific amount of time
+[Typing utility](./utilities/typing) | Static typing classes to speedup development in your IDE
 
 ## Environment variables
 

docs/content/media/utilities_typing.png

@@ -0,0 +1,24 @@
+---
+title: Typing
+description: Utility
+---
+
+import Note from "../../src/components/Note"
+
+This typing utility provides static typing classes that can be used to ease the development by providing the IDE type hints.
+
+![Utilities Typing](../media/utilities_typing.png)
+
+## LambdaEvent and LambdaContext
+
+The `LambdaEvent` and the `LambdaContext` typings are typically used in the handler method for the Lambda function.
+
+```python:title=index.py
+from aws_lambda_powertools.utilities.typing import LambdaEvent, LambdaContext
+
+# highlight-start
+def handler(event: LambdaEvent, context: LambdaContext) -> LambdaEvent:
+# highlight-end
+    # Insert business logic
+    return event
+```

docs/content/utilities/typing.mdx

@@ -32,6 +32,7 @@ module.exports = {
                     'Utilities': [
                         'utilities/middleware_factory',
                         'utilities/parameters',
+                        'utilities/typing',
                     ],
                 },
                 navConfig: {