How to use the stacker.exceptions.StackDidNotChange function in stacker

change_set_id = response["Id"]
    response = wait_till_change_set_complete(
        cfn_client, change_set_id
    )
    status = response["Status"]
    if status == "FAILED":
        status_reason = response["StatusReason"]
        if ("didn't contain changes" in response["StatusReason"] or
                "No updates are to be performed" in response["StatusReason"]):
            logger.debug(
                "Stack %s did not change, not updating and removing "
                "changeset.",
                fqn,
            )
            cfn_client.delete_change_set(ChangeSetName=change_set_id)
            raise exceptions.StackDidNotChange()
        logger.warn(
            "Got strange status, '%s' for changeset '%s'. Not deleting for "
            "further investigation - you will need to delete the changeset "
            "manually.",
            status, change_set_id
        )
        raise exceptions.UnhandledChangeSetStatus(
            fqn, change_set_id, status, status_reason
        )

    execution_status = response["ExecutionStatus"]
    if execution_status != "AVAILABLE":
        raise exceptions.UnableToExecuteChangeSet(fqn,
                                                  change_set_id,
                                                  execution_status)

change_set_id = response["Id"]
    response = wait_till_change_set_complete(
        cfn_client, change_set_id
    )
    status = response["Status"]
    if status == "FAILED":
        status_reason = response["StatusReason"]
        if ("didn't contain changes" in response["StatusReason"] or
                "No updates are to be performed" in response["StatusReason"]):
            logger.debug(
                "Stack %s did not change, not updating and removing "
                "changeset.",
                fqn,
            )
            cfn_client.delete_change_set(ChangeSetName=change_set_id)
            raise exceptions.StackDidNotChange()
        logger.warn(
            "Got strange status, '%s' for changeset '%s'. Not deleting for "
            "further investigation - you will need to delete the changeset "
            "manually.",
            status, change_set_id
        )
        raise exceptions.UnhandledChangeSetStatus(
            fqn, change_set_id, status, status_reason
        )

    execution_status = response["ExecutionStatus"]
    if execution_status != "AVAILABLE":
        raise exceptions.UnableToExecuteChangeSet(fqn,
                                                  change_set_id,
                                                  execution_status)

get_change_set_name())
        else:
            raise
    change_set_id = response["Id"]
    response = wait_till_change_set_complete(
        cfn_client, change_set_id
    )
    status = response["Status"]
    if status == "FAILED":
        status_reason = response["StatusReason"]
        if "didn't contain changes" in response["StatusReason"]:
            logger.debug(
                "Stack %s did not change, not updating.",
                fqn,
            )
            raise exceptions.StackDidNotChange
        raise exceptions.UnhandledChangeSetStatus(
            fqn, change_set_id, status, status_reason
        )

    execution_status = response["ExecutionStatus"]
    if execution_status != "AVAILABLE":
        raise exceptions.UnableToExecuteChangeSet(fqn,
                                                  change_set_id,
                                                  execution_status)

    changes = response["Changes"]
    return changes, change_set_id

existing_params,
                    parameters,
                    tags,
                    force_interactive=stack.protected,
                    force_change_set=force_change_set,
                    stack_policy=stack_policy,
                )

                logger.debug("Updating existing stack: %s", stack.fqn)
                return SubmittedStatus("updating existing stack")
            else:
                return SubmittedStatus("destroying stack for re-creation")
        except CancelExecution:
            stack.set_outputs(provider.get_output_dict(provider_stack))
            return SkippedStatus(reason="canceled execution")
        except StackDidNotChange:
            stack.set_outputs(provider.get_output_dict(provider_stack))
            return DidNotChangeStatus()