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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 _abort_workflow(pb: ProcessingBlock, workflow_stage_dict: dict, docker: DockerSwarmClient):
 """Abort the workflow. TODO(BMo):
 This function currently does nothing as the abort flag is hardcoded to False! This function is used by `execute_processing_block`. Args: pb (ProcessingBlock):
 Configuration database Processing block object. workflow_stage_dict (dict):
 Workflow stage metadata dictionary. docker (DockerClient):
 Docker Swarm Client object. Returns: bool, True if the stage is aborted, otherwise False. """

    # TODO(BMo) Ask the database if the abort flag on the PB is set.
    _abort_flag = False
    if _abort_flag:
        for workflow_stage in pb.workflow_stages:
            for service_id, _ in \
                    workflow_stage_dict[workflow_stage.id]['services'].items():
                docker.delete_service(service_id)
                LOG.info("Deleted Service Id %s", service_id)
        return True
    return False