(AWS Lambda) "errorMessage": "Unable to marshal response: Object of type HTTPResponse is not JSON serializable"

So I have been testing my server API via POSTMAN and the result looks like this:

My goal with the AWS Lambda is to show (in the log) whatever the json response you get from this API. My code in the lambda looks like this:

import json
import urllib3


def lambda_handler(event, context):
    http = urllib3.PoolManager()

    response = http.request('GET',
                        "http://106.10.54.227:9062/api/v1/weather-api",
                        retries = False)
    
    return response

However when I test this lambda function, I get this error:

Response:
{
  "errorMessage": "Unable to marshal response: Object of type HTTPResponse is not JSON serializable",
  "errorType": "Runtime.MarshalError"
}

What I do not understand is the fact that the response from the API is the JSON itself so I don't know why it complains it is not serializable.

Is there any way to fix this issue? Thanks a lot!