<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def customer_webhook_handler(event):
 	"""Handle updates to customer objects. 	First determines the crud_type and then handles the event if a customer exists locally. 	As customers are tied to local users, djstripe will not create customers that 	do not already exist locally. 	Docs and an example customer webhook response: https://stripe.com/docs/api#customer_object 	"""

	if event.customer:
		# As customers are tied to local users, djstripe will not create
		# customers that do not already exist locally.
		_handle_crud_like_event(
			target_cls=models.Customer, event=event, crud_exact=True, crud_valid=True
		)