layerVersionArn property

ARN of the Lambda layer version. Can be a full ARN with version (e.g., arn:aws:lambda:region:account:layer:name:1) or without version (e.g., arn:aws:lambda:region:account:layer:name). When the version is omitted, the latest version will be retrieved (requires lambda:ListLayerVersions permission). Use the full ARN with version for cross-account layers where you don't have list permissions. One of layerName or layerVersionArn is required.