There is a command group 'az_peering_service_prefix'. This group of commands could 'peering service prefix'. 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_peering_service_prefix_update'.The syntax is: az peering service prefix update --peering-service-name
                                 --prefix-name
                                 --resource-group
                                 [--peering-service-prefix-key]
                                 [--prefix]. The 1th example of the child command would be to use it to 'create or update a prefix for the peering service', the syntax is: az peering service prefix update --peering-service-name "peeringServiceName" --peering-service-prefix-key "00000000-0000-0000-0000-000000000000" --prefix "192.168.1.0/24" --prefix-name "peeringServicePrefixName" --resource-group "rgName". The parameter '--peering-service-name' is required. It is used to the name of the peering service.. The parameter '--prefix-name' is required. It is used to the name of the prefix.. 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 '--peering-service-prefix-key' is optional. the peering service prefix key.. The parameter '--prefix' is optional. the prefix from which your traffic originates.. 