AWSTemplateFormatVersion: "2010-09-09" Transform: AWS::Serverless-2016-10-31 Globals: Function: Timeout: 10 Parameters: ChildStackHelloWorldLayerName: Type: String Description: Name of the HelloWorldLayer in child stack which will be used with current deployment Resources: ChildStack: Type: AWS::Serverless::Application Properties: Location: child_stack/template.yaml Parameters: ChildStackHelloWorldLayerName: !Ref ChildStackHelloWorldLayerName