Resources:
  MyTopic:
    Type: AWS::SNS::Topic

  TopicToLambdaHardcoded:
    Type: AWS::Serverless::Connector
    Properties:
      Source:
        Id: MyTopic
      Destination:
        Type: AWS::Lambda::Function
        Arn: !GetAtt SomeLambda.Arn
      Permissions:
      - Write