There is a command group 'az_iot_hub_policy'. This group of commands could 'manage shared access policies of an iot hub'. 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_iot_hub_policy_create'.The syntax is: az iot hub policy create --hub-name
                         --name
                         --permissions
                         [--resource-group]. The 1th example of the child command would be to use it to 'create a new shared access policy', the syntax is: az iot hub policy create --hub-name MyIotHub --name new-policy --permissions RegistryWrite ServiceConnect DeviceConnect. The parameter '--hub-name' is required. It is used to iot hub name.. The parameter '--name -n' is required. It is used to shared access policy name.. The parameter '--permissions' is required. It is used to permissions of shared access policy. use space-separated list for multiple permissions. possible values: registryread, registrywrite, serviceconnect, deviceconnect.. The parameter '--resource-group -g' is optional. name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. 