```

Following is an example lambda handler.
```py
from flask import Flask, request, abort, make_response
import requests

app = Flask(__name__)
@app.route('/', methods=['POST'])
def get_webhook():
	if request.method == 'POST':
		# obtain the request event from the 'POST' call
		event = request.json

		object_context = event["getObjectContext"]

		# Get the presigned URL to fetch the requested

	objDisableAndRev := klabels.Set{"sidecar.istio.io/inject": "false", "istio.io/rev": "canary"}

	defaultWebhook := getWebhooks(t, "", "istio-sidecar-injector")
	revWebhook := getWebhooks(t, "--set revision=canary", "istio-sidecar-injector-canary")
	autoWebhook := getWebhooks(t, "--set values.sidecarInjectorWebhook.enableNamespacesByDefault=true", "istio-sidecar-injector")