{
  "Resources": {
    "Func": {
      "Type": "AWS::Lambda::Function",
      "Properties": {
        "Code": {
          "S3Bucket": "new-bucket",
          "S3Key": "current-key"
        },
        "FunctionName": "child-function"
      },
      "Metadata": {
        "aws:asset:path": "old-path"
      }
    },
    "GrandChildStack": {
      "Type": "AWS::CloudFormation::Stack",
      "Properties": {
        "TemplateURL": "https://www.magic-url.com"
      },
      "Metadata": {
        "aws:asset:path": "one-lambda-stack.nested.template.json"
      }
    }
  }
}