There is a command group 'az_vm_image'. This group of commands could 'information on available virtual machine images'. 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_vm_image_list publishers'.The syntax is: az vm image list-publishers --location. The 1th example of the child command would be to use it to 'list all publishers in the west us region', the syntax is: az vm image list-publishers -l westus. The 2th example of the child command would be to use it to 'list all publishers with names starting with  open  in westus', the syntax is: az vm image list-publishers -l westus --query "[?starts_with(name, 'Open')]". The parameter '--location -l' is required. It is used to location. values from: `az account list-locations`. you can configure the default location using `az configure --defaults location=<location>`.. 