There is a command group 'az_eventgrid_partner_namespace'. This group of commands could 'manage partner namespaces'. 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_eventgrid_partner_namespace_create'.The syntax is: az eventgrid partner namespace create --location
                                      --name
                                      --partner-registration-id
                                      --resource-group
                                      [--tags]. The 1th example of the child command would be to use it to 'create a new partner namespace', the syntax is: az eventgrid partner namespace create -g rg1 --name namespaceName1 -l westus2 --partner-registration-id 795c9f2f-6d2d-42ff-a570-42fd3043192c. 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>`.. The parameter '--name -n' is required. It is used to name of the partner namespace.. The parameter '--partner-registration-id' is required. It is used to the fully qualified arm id of the partner registration that should be associated with this partner namespace. this takes the following format: /subscriptions/{subscriptionid}/resourcegroups/{resourcegroupname}/providers/microsoft.eventgrid/partnerregistrations/{partnerregistrationname}.. 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 '--tags' is optional. space-separated tags: key[=value] [key[=value] ...]. use "" to clear existing tags.. 