There is a command group 'az_iot_du_account'. This group of commands could 'device update account management'. 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_iot_du_account_list'.The syntax is: az iot du account list [--resource-group]. The 1th example of the child command would be to use it to 'list all accounts in a subscription', the syntax is: az iot du account list. The 2th example of the child command would be to use it to 'list accounts in a subscription that meet filter criteria', the syntax is: az iot du account list --query "[?tags.env == 'test']". The 3th example of the child command would be to use it to 'list all accounts in a resource group', the syntax is: az iot du account list -g {resource_group}. The parameter '--resource-group -g' is optional. device update account resource group name. you can configure the default group using `az config set defaults.adu_group=<name>`.. 