def METHOD_NAME(self, resource):
    resource_group = ResourceIdParser.get_resource_group(resource['id'])
    account_name = ResourceIdParser.get_resource_name(resource['c7n:parent-id'])
    blob_container = self.client.blob_containers.get(resource_group,
        account_name,
        resource['name'],
    )
    blob_container.public_access = self.data['value']
    self.client.blob_containers.update(
        resource_group,
        account_name,
        resource['name'],
        blob_container
    )