Returns the number of open workflow executions within the given domainthat meet the specified filtering criteria.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/swf/count-open-workflow-executions.html
| aws swf count-open-workflow-executions --domain DataFrobtzz --start-time-filter " |
| count-pending-activity-tasks — AWS CLI 1.16.13 Command Reference : http://docs.aws.amazon.com/cli/latest/reference/swf/count-open-workflow-executions.html |