There is a command group 'az_iot_du_device_group'. This group of commands could 'device group 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_device_group_show'.The syntax is: az iot du device group show --account
                            --gid
                            --instance
                            [--best-updates {false, true}]
                            [--resource-group]
                            [--update-compliance {false, true}]. The 1th example of the child command would be to use it to 'show a device group', the syntax is: az iot du device group show -n {account_name} -i {instance_name} --group-id {device_group_id}. The 2th example of the child command would be to use it to 'show the best updates available for a device group  this flag modifies the command to returns a list', the syntax is: az iot du device group show -n {account_name} -i {instance_name} --group-id {device_group_id} --best-updates. The 3th example of the child command would be to use it to 'show update compliance for a device group', the syntax is: az iot du device group show -n {account_name} -i {instance_name} --group-id {device_group_id} --update-compliance. The parameter '--account -n' is required. It is used to device update account name. you can configure the default account name using `az config set defaults.adu_account=<name>`.. The parameter '--gid --group-id' is required. It is used to device group id. this is created from the value of the adugroup tag in the connected iot hub's device/module twin or $default for devices with no tag.. The parameter '--instance -i' is required. It is used to device update instance name. you can configure the default instance name using `az config set defaults.adu_instance=<name>`.. The parameter '--best-updates' is optional. flag indicating the command should fetch the best available updates for the device group including a count of how many devices need each update. a best update is the latest update that meets all compatibility specifications of a device class.. 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>`.. The parameter '--update-compliance' is optional. flag indicating the command should fetch device group update compliance information such as how many devices are on their latest update, how many need new updates, and how many are in progress on receiving a new update.. 