This example shows how to implement the Diagnostic trait to return a specific error_type in the Lambda error response. If you don't use the error_type field, you don't need to implement Diagnostic, the type will be generated based on the error type name.

1. Install cargo-lambda
2. Build the function with cargo lambda build --release
3. Deploy the function to AWS Lambda with cargo lambda deploy --iam-role YOUR_ROLE

Build the function with cargo lambda build --release --arm64