There is a command group 'az_dnc_delegated subnet service'. This group of commands could 'manage delegated subnet service with dnc'. 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_dnc_delegated subnet service_create'.The syntax is: az dnc delegated-subnet-service create --name
                                       --resource-group
                                       [--allocation-block-prefix-size]
                                       [--id]
                                       [--location]
                                       [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]
                                       [--subnet-details-id]
                                       [--tags]. The 1th example of the child command would be to use it to 'create a subnet delegated to dnc', the syntax is: az dnc delegated-subnet-service create --location "West US" --id "/subscriptions/613192d7-503f-477a-9cfe-4efc3ee2bd60/resourceGroups/TestRG/providers/Microsoft.DelegatedNetwork/controller/dnctestcontroller" --subnet-details-id "/subscriptions/613192d7-503f-477a-9cfe-4efc3ee2bd60/resourceGroups/TestRG/providers/Microsoft.Network/virtualNetworks/testvnet/subnets/testsubnet" --resource-group "TestRG" --resource-name "delegated1" --allocation-block-prefix-size 27. The parameter '--name --resource-name -n' is required. It is used to the name of the resource. it must be a minimum of 3 characters, and a maximum of 63.. 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 '--allocation-block-prefix-size -a' is optional. defines prefix size of cidr blocks allocated to nodes in vnetblock mode.. The parameter '--id' is optional. controller arm resource id.. The parameter '--location -l' is optional. location of the resource.. The parameter '--no-wait' is optional. do not wait for the long-running operation to finish.. The parameter '--subnet-details-id' is optional. subnet arm resource id.. The parameter '--tags' is optional. the resource tags.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. 