There is a command group 'az_arcappliance_prepare'. This group of commands could 'command group for preparing for an arc resource bridge deployment  this downloads the necessary images to build the on premises appliance vm and uploads it to the private cloud gallery'. 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_arcappliance_prepare_scvmm'.The syntax is: az arcappliance prepare scvmm --config-file
                              [--address]
                              [--location]
                              [--name]
                              [--password]
                              [--port]
                              [--resource-group]
                              [--username]. The 1th example of the child command would be to use it to 'prepare scvmm environment for arc resource bridge deployment', the syntax is: az arcappliance prepare scvmm --config-file [REQUIRED] --address [OPTIONAL] --port [OPTIONAL] --username [OPTIONAL] --password [OPTIONAL]. The parameter '--config-file' is required. It is used to path to the arc resource bridge appliance config file, <resourcename>-appliance.yaml.. The parameter '--address' is optional. scvmm server fqdn (e.g. vmmuser001.contoso.lab) or ipv4 address. if you have a highly available vmm setup, enter the role name.. The parameter '--location -l' is optional. location. values from: `az account list-locations`. you can configure the default location using `az configure --defaults location=<location>`.. The parameter '--name -n' is optional. name of the arc resource bridge.. The parameter '--password' is optional. scvmm administrator password.. The parameter '--port' is optional. scvmm server port number (default: 8100).. The parameter '--resource-group -g' is optional. name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. The parameter '--username' is optional. scvmm administrator username in the format domain\username where 'domain' should be the netbios name of the domain (e.g. contoso\administrator).. 