Kubeless with Lambda-proxy response

I deployed a function to kubeless and trying to get lambda-proxy format response upon invoking the function. But it sends in the lambda format. Upon using sls offline, it works as intended in the lambda-proxy format. How to configure lambda-proxy format in kubeless?

Below is my serverless.yml

service: test

package:
  individually: true # Optimization / Individual packaging per function

plugins:
# serverless-webpack should precede serverless-offline as the order is important.
  - serverless-webpack
  - serverless-offline
  - serverless-kubeless

provider:
  name: kubeless
  runtime: nodejs12

functions:
  hello:
    handler: hello.handler
    events:
      - http:
          method: post
          path: sls/hello/v1
 
custom:
# https://serverless.com/plugins/serverless-webpack/
  webpack:
    webpackConfig: 'webpack.config.js'  # Name of webpack configuration file
    packager: 'yarn'   # Packager that will be used to package your external modules
    includeModules: true  # enable auto-packing of external modules