AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: A hello world application.

Resources:
  FunctionA:
    Type: AWS::Serverless::Function
    Properties:
      Handler: main_a.handler
      Runtime: python3.7
      CodeUri: FunctionA
      Timeout: 600

  ChildStackX:
    Type: AWS::Serverless::Application
    Properties:
      Location: ChildStackX/template.yaml