Resources:
  HttpApi:
    Type: AWS::Serverless::HttpApi
    Properties:
      DefinitionBody:
        openapi: 3.0.1
        paths:
          /foo: {}
      Description: my description

  Function:
    Type: AWS::Serverless::Function
    Properties:
      Runtime: python3.7
      Handler: index.handler
      CodeUri: s3://bucket/key
      Events:
        Api:
          Type: HttpApi
          Properties:
            ApiId: HttpApi