{
  "Resources": {
    "Func": {
      "Type": "AWS::Lambda::Function",
      "Properties": {
        "Code": {
          "S3Bucket": {
            "Ref": "referencetoS3BucketParam"
          },
          "S3Key": {
            "Ref": "referencetoS3KeyParam"
          }
        },
        "FunctionName": "my-function"
      },
      "Metadata": {
        "aws:asset:path": "old-path"
      }
    }
  },
  "Parameters": {
    "referencetoS3BucketParam": {
      "Type": "String"
    },
    "referencetoS3KeyParam": {
      "Type": "String"
    }
  }
}