YAML-to-XML_CloudWatchLogs.yml

---
Resources:
  TopEngine:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: TopEngine
      RetentionInDays: 5
  EngineStats:
    Type: AWS::Logs::LogStream
    Properties:
      LogStreamName: EngineStats
      LogGroupName:
        Ref: TopEngine
  InputSession:
    Type: AWS::Logs::LogStream
    Properties:
      LogStreamName: InputSession
      LogGroupName:
        Ref: TopEngine
  Resultset:
    Type: AWS::Logs::LogStream
    Properties:
      LogStreamName: Resultset
      LogGroupName:
        Ref: TopEngine
  MainSource:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: MainSource
      RetentionInDays: 10
  MessageRate:
    Type: AWS::Logs::LogStream
    Properties:
      LogStreamName: MessageRate
      LogGroupName:
        Ref: MainSource
  Threshold:
    Type: AWS::Logs::LogStream
    Properties:
      LogStreamName: Threshold
      LogGroupName:
        Ref: MainSource
...