def delete_instance(self, instance, project_id=None):
        """
        Deletes a Cloud SQL instance.

        :param project_id: Project ID of the project that contains the instance. If set
            to None or missing, the default project_id from the GCP connection is used.
        :type project_id: str
        :param instance: Cloud SQL instance ID. This does not include the project ID.
        :type instance: str
        :return: None
        """
        response = self.get_conn().instances().delete(
            project=project_id,
            instance=instance,
        ).execute(num_retries=self.num_retries)
        operation_name = response["name"]
        self._wait_for_operation_to_complete(project_id=project_id,
                                             operation_name=operation_name)
def delete_instance ( self , instance , project_id = None ) : response = self . get_conn ( ) . instances ( ) . delete ( project = project_id , instance = instance , ) . execute ( num_retries = self . num_retries ) operation_name = response [ "name" ] self . _wait_for_operation_to_complete ( project_id = project_id , operation_name = operation_name )
Deletes a Cloud SQL instance.

        :param project_id: Project ID of the project that contains the instance. If set
            to None or missing, the default project_id from the GCP connection is used.
        :type project_id: str
        :param instance: Cloud SQL instance ID. This does not include the project ID.
        :type instance: str
        :return: None