Eventbridge Pipe - How to fetch extract object from array in output transformation- Input Source SQS & Target to Lambda (Cloudwatch event object input but receiving List<CloudwatchEvent<T>>)

I am trying to extract one SQS message from transform it into Cloudwatch event. The problem I am facing lambda side I am always getting list of items where as I am expecting object

Here is input payload for SQS event - batch size configured as 1 for SQS

{
  "messageId": "059f36b4-87a3-44ab-83d2-661975830a7d",
  "receiptHandle": "AQEBwJnKyrHigUMZj6rYigCgxlaS3SLy0a...",
  "body": "{\"version\":\"0\",\"id\":\"17793124-05d4-b198-2fde-7ededc63b103\",\"detail-type\":\"ObjectCreated\",\"source\":\"aws.s3\",\"account\":\"123456789012\",\"time\":\"2021-11-12T00:00:00Z\",\"region\":\"ca-central-1\",\"resources\":[\"arn:aws:s3:::example-bucket\"],\"detail\":{\"version\":\"0\",\"bucket\":{\"name\":\"example-bucket\"},\"object\":{\"key\":\"example-key\",\"size\":5,\"etag\":\"b1946ac92492d2347c6235b4d2611184\",\"version-id\":\"IYV3p45BT0ac8hjHg1houSdS1a.Mro8e\",\"sequencer\":\"00617F08299329D189\"},\"request-id\":\"N4N7GDK58NMKJ12R\",\"requester\":\"123456789012\",\"source-ip-address\":\"1.2.3.4\",\"reason\":\"PutObject\"}}",
  "attributes": {
    "ApproximateReceiveCount": "1",
    "SentTimestamp": "1545082649183",
    "SenderId": "AIDAIENQZJOLO23YVJ4VO",
    "ApproximateFirstReceiveTimestamp": "1545082649185"
  },
  "messageAttributes": {},
  "md5OfBody": "e4e68fb7bd0e697a0ae8f1bb342846b3",
  "eventSource": "aws:sqs",
  "eventSourceARN": "arn:aws:sqs:us-east-2:123456789012:my-queue",
  "awsRegion": "us-east-2"
}

Lambda side response logs

[
{
    "Version": null,
    "Account": null,
    "Region": null,
    "Detail": "sushant",
    "detail-type": "Object Created",
    "Source": null,
    "Time": "0001-01-01T00:00:00",
    "Id": "17793124-05d4-b198-2fde-7ededc63b103",
    "Resources": null
}
]

Output transformation

I have tried $.0 but I am always getting array. Here lambda is just for example How we can extract single object from array in eventbridge pipe