# Handler

Lambda function handler.

- Source: [`aws-lambda/lib/handler.ts`](https://github.com/aws/aws-cdk/blob/v2.274.0/packages/aws-cdk-lib/aws-lambda/lib/handler.ts#L4)

## Properties

- `FROM_IMAGE`: string (required) (static) — A special handler when the function handler is part of a Docker image.