There is a command group 'az_eventgrid_namespace'. This group of commands could 'manage eventgrid namespace'. 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_namespace_create'.The syntax is: az eventgrid namespace create --name
                              --resource-group
                              [--identity]
                              [--inbound-ip-rules]
                              [--is-zone-redundant {0, 1, f, false, n, no, t, true, y, yes}]
                              [--location]
                              [--minimum-tls-version-allowed {1.0, 1.1, 1.2}]
                              [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]
                              [--private-endpoint-connections]
                              [--public-network-access {disabled, enabled}]
                              [--sku]
                              [--tags]
                              [--topic-spaces-configuration]. The 1th example of the child command would be to use it to 'create namespace', the syntax is: az eventgrid namespace create -g rg -n namespace. The parameter '--name --namespace-name -n' is required. It is used to name of the namespace.. 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 '--identity' is optional. identity information for the namespace resource.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--inbound-ip-rules' is optional. this can be used to restrict traffic from specific ips instead of all ips. note: these are considered only if publicnetworkaccess is enabled.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--is-zone-redundant' is optional. allows the user to specify if the service is zone-redundant.. The parameter '--location -l' is optional. location of the resource.  when not specified, the location of the resource group will be used.. The parameter '--minimum-tls-version-allowed' is optional. minimum tls version of the publisher allowed to publish to this namespace. only tls version 1.2 is supported.. The parameter '--no-wait' is optional. do not wait for the long-running operation to finish.. The parameter '--private-endpoint-connections' is optional. support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--public-network-access' is optional. this determines if traffic is allowed over public network.. The parameter '--sku' is optional. represents available sku pricing tiers.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--tags' is optional. tags of the resource.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--topic-spaces-configuration' is optional. topic spaces configuration information for the namespace resource  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. 