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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save(self, *args, **kwargs):
 		""" 		Save object in database, updating the datetimes accordingly. 		 		"""

		# Now in UTC
		now_datetime = timezone.now()

		# If we are in a creation, assigns creation_datetime
		if not self.id:
			self.creation_datetime = now_datetime

		# Las update datetime is always updated
		self.last_update_datetime = now_datetime
		
		# Current user is creator
		# (get current user with django-cuser middleware)
		self.creator_user = None
		current_user = CuserMiddleware.get_user()
		if not current_user is None and not current_user.is_anonymous():
			self.creator_user_id = current_user.id
		
		# Parent constructor call
		super(FieldTranslation, self).save(*args, **kwargs)