CREATE_FAILED: ApiGatewayMethodActionPost (AWS::ApiGateway::Method) - Invalid type for parameter selectionPattern

I'm trying to deploy my serverless app on local stack but Invalid type parameter for selectionPattern error is being thrown. Below is the complete error and serverless.yml

Error:

ApiGatewayMethodActionPost (Parameter validation failed:; Invalid type for parameter selectionPattern, value: 200, type: <class 'int'>, valid types: <class 'str'>)

serverless.yml

  events:
    - http:
        path: /action
        method: POST
        iamRole: arn:aws:iam::xxxxxxxxxxxx:role/someRole
        action: StartSyncExecution
        request:
          template:
            application/json: |
              {
                "stateMachineArn":"arn:aws:states:'us-west-2':xxxxxxxxxxxx:stateMachine:someMachine",
                "input": "$util.escapeJavaScript($input.json('$'))"
              }
        response:
            template: 
              application/json: |
                $input.path('$.output')

I was checking serverless-step-function code where selectionPattern is defined as integer and not string. Following is the link to the code: code

レポート内の serverless.yml 設定から始め、リンクされた serverless-step-functions lib/deploy/events/apiGateway/methods.js の199行目のコードと比較します。LocalStack に対してデプロイを再現し、selectionPattern がどのように生成されるかを追跡し、API Gateway メソッドがパラメーター型エラーなしでデプロイされることを確認して修正を検証します。