There is a command group 'az_iot_du_update'. This group of commands could 'device update update 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_update_list'.The syntax is: az iot du update list --account
                      --instance
                      [--by-provider {false, true}]
                      [--filter]
                      [--resource-group]
                      [--search]
                      [--un]
                      [--up]. The 1th example of the child command would be to use it to 'list all updates', the syntax is: az iot du update list -n {account_name} -i {instance_name}. The 2th example of the child command would be to use it to 'list all updates satisfying a free text search criteria  in this case the update provider of contoso', the syntax is: az iot du update list -n {account_name} -i {instance_name} --search 'Contoso'. The 3th example of the child command would be to use it to 'list all updates satisfying an odata filter  in this case filtering for non deployable updates', the syntax is: az iot du update list -n {account_name} -i {instance_name} --filter 'isDeployable eq false'. The 4th example of the child command would be to use it to 'list all update providers', the syntax is: az iot du update list -n {account_name} -i {instance_name} --by-provider. The 5th example of the child command would be to use it to 'list all update names by update provider', the syntax is: az iot du update list -n {account_name} -i {instance_name} --update-provider {provider_name}. The 6th example of the child command would be to use it to 'list all update versions by update provider and update name', the syntax is: az iot du update list -n {account_name} -i {instance_name} --update-provider {provider_name} --update-name {update_name}. 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 '--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 '--by-provider' is optional. flag indicating the result set should be constrained to update providers.. The parameter '--filter' is optional. restricts the set of updates returned by property values. supported when listing updates with no constraints or when listing by version.. 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 '--search' is optional. request updates matching a free-text search expression. supported when listing updates with no constraints.. The parameter '--un --update-name' is optional. the update name.. The parameter '--up --update-provider' is optional. the update provider.. 