Establishing connection between aws lambda trigger function and smart bulb

[sashank24]

I am getting an error :
}
[INFO] 2024-03-01T17:18:55.435Z 992be020-de67-4c7d-bccf-0fc195831129 Received v2 directive!
[ERROR] KeyError: 'header'
Traceback (most recent call last):
  File "/var/task/lambda.py", line 116, in lambda_handler
    if request["header"]["namespace"] == "Alexa.ConnectedHome.Discovery":END

the Request ID : 992be020-de67-4c7d-bccf-0fc195831129

Can you help me solve this