CloudFormationでスタックを作成しようとしたら「Encountered unsupported property <Property Name>」となる - Qiita

Resources: DemoFunction: Type: AWS::Lambda::Function Properties: FunctionName: demo_func Code: ZipFile: | import json def lambda_handler(event, context): jsn_str = json.dumps(event, ensure_ascii=False) print(jsn_str) Handler: lambda_function.lambda_handler MemorySize: 128 Timeout: 30 Role: !Sub arn:aws:iam::${AWS::AccountId}:role/Lambda_Basic_Role Runtime: python3.7 Events: Stream: Type: DynamoDB