Sending event back to event bus using boto3 – Amazon Web Sevices

I am new to event bus service within AWS.
I am trying to send a event back to event bus using boto3 library.

for some reason I am not finding any logs in cloud watch with respect to the event of event bridge.

Here is what i am trying out:

def handler(event, context):
    event_client = boto3.client('events')
    response = event_client.put_events(
                Entries=[
                    {
                        'Source': 'Lambda function get_distance_duration_from_bsig_file',
                        'DetailType': 'Distance and Duration calculated by bsig file',
                        'Detail': json.dumps(event),
                        'EventBusName': 'workflow-notifications-bus'
                        
                    },
                ]
            ) 

In 'Detail' I am sending in the event that i am getting in from lambda event.

Is there anything that i am missing out?
Also here is the response from put_events

{
  "FailedEntryCount": 0,
  "Entries": [
    {
      "EventId": "07f05db5-da9f-74a2-0b81-55c5088895bd"
    }
  ],
  "ResponseMetadata": {
    "RequestId": "8d5adc18-6829-478f-8c20-4876bf723f52",
    "HTTPStatusCode": 200,
    "HTTPHeaders": {
      "x-amzn-requestid": "8d5adc18-6829-478f-8c20-4876bf723f52",
      "content-type": "application/x-amz-json-1.1",
      "content-length": "85",
      "date": "Wed, 12 Apr 2023 04:40:28 GMT"
    },
    "RetryAttempts": 0
  }
}