There is a command group 'az_network_dns_zone'. This group of commands could 'manage dns zones'. 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_network_dns_zone_update'.The syntax is: az network dns zone update --name
                           --resource-group
                           [--add]
                           [--force-string]
                           [--if-match]
                           [--registration-vnets]
                           [--remove]
                           [--resolution-vnets]
                           [--set]
                           [--tags]
                           [--zone-type {private, public}]. The 1th example of the child command would be to use it to 'update a dns zone properties to change the user defined value of a previously set tag', the syntax is: az network dns zone update -g MyResourceGroup -n www.mysite.com --tags CostCenter=Marketing. The 2th example of the child command would be to use it to 'update a dns zone properties  autogenerated', the syntax is: az network dns zone update --name www.mysite.com --remove tags.no_80 --resource-group MyResourceGroup. The parameter '--name -n' is required. It is used to the name of the zone.. 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 '--add' is optional. add an object to a list of objects by specifying a path and key value pairs.  example: `--add property.listproperty <key=value, string or json string>`.. The parameter '--force-string' is optional. when using 'set' or 'add', preserve string literals instead of attempting to convert to json.. The parameter '--if-match' is optional. update only if the resource with the same etag exists.. The parameter '--registration-vnets' is optional. space-separated names or ids of virtual networks that register hostnames in this dns zone. number of private dns zones with virtual network auto-registration enabled is 1. if you need to increase this limit, please contact azure support: https://docs.microsoft.com/en-us/azure/azure-subscription-service-limits.. The parameter '--remove' is optional. remove a property or an element from a list.  example: `--remove property.list <indextoremove>` or `--remove propertytoremove`.. The parameter '--resolution-vnets' is optional. space-separated names or ids of virtual networks that resolve records in this dns zone.. The parameter '--set' is optional. update an object by specifying a property path and value to set.  example: `--set property1.property2=<value>`.. The parameter '--tags' is optional. space-separated tags: key[=value] [key[=value] ...]. use "" to clear existing tags.. The parameter '--zone-type' is optional. type of dns zone to create.. 