Typescript: Cannot find module 'aws-lambda' or its corresponding type declarations.

I get this error from src/configure.d.ts when using typescript:
>node_modules/@vendia/serverless-express/src/configure.d.ts:2:25 - error TS2307: Cannot find module 'aws-lambda' or its corresponding type declarations.

I don't see aws-lambda in the package.json at all. I was able to get it to build by adding @types/aws-lambda as a devDependency.

@vendia/serverless-express: 4.3.2
typescript: 4.1.5

Check package.json alongside the declaration reported at src/configure.d.ts and reproduce the TypeScript 4.1.5 build. Confirm that the package metadata provides the missing aws-lambda type declarations and that the TS2307 error no longer appears.

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