There is a command group 'az_dms_project_task'. This group of commands could 'manage tasks for a azure database migration service  classic  instance s project'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_dms_project_task_cancel'.The syntax is: az dms project task cancel --name
                           --project-name
                           --resource-group
                           --service-name
                           [--object-name]. The parameter '--name -n' is required. It is used to the name of the task. a dms project task is the activity that performs migration related work. there could be multiple tasks associated with a project.. The parameter '--project-name' is required. It is used to the name of the project. dms project is a logical grouping that encompasses source database connection, target database connection and a list of databases to migrate.. The parameter '--resource-group -g' is required. It is used to name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. The parameter '--service-name' is required. It is used to the name of the service. dms service is an azure instance that performs database migrations.. The parameter '--object-name' is optional. supported by mongodb migrations only. the qualified name of the database or collection you wish to stop. leave blank to stop the entire migration.. 