message: fixed bug caused by incorrect module.handler
diff: @@ -6,8 +6,8 @@ from pulumi_aws import lambda_, sfn
  hello_world_fn = lambda_.Function('helloWorldFunction',
  role=iam.lambda_role.arn,
  - runtime="python2.7",
  - handler="hello_step.hello",
  + runtime="python3.7",
  + handler="hello.handler",
  code=pulumi.AssetArchive({
  '.': pulumi.FileArchive('./step_hello')
  })
  