There is a command group 'az_functionapp_deployment_slot'. This group of commands could 'manage function app deployment slots'. 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_functionapp_deployment_slot_create'.The syntax is: az functionapp deployment slot create --name
                                      --resource-group
                                      --slot
                                      [--configuration-source]
                                      [--deployment-container-image-name]
                                      [--docker-registry-server-password]
                                      [--docker-registry-server-user]
                                      [--image]
                                      [--registry-password]
                                      [--registry-username]. The 1th example of the child command would be to use it to 'create a deployment slot   autogenerated', the syntax is: az functionapp deployment slot create --name MyFunctionapp --resource-group MyResourceGroup --slot staging. The parameter '--name -n' is required. It is used to name of the function app.. 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 '--slot -s' is required. It is used to the name of the slot.. The parameter '--configuration-source' is optional. source slot to clone configurations from. use function app's name to refer to the production slot.. The parameter '--deployment-container-image-name' is optional. container image, e.g. publisher/image-name:tag.. The parameter '--docker-registry-server-password' is optional. the container registry server password.. The parameter '--docker-registry-server-user' is optional. the container registry server username.. The parameter '--image -i' is optional. container image, e.g. publisher/image-name:tag.. The parameter '--registry-password -d' is optional. the container registry server password.. The parameter '--registry-username -u' is optional. the container registry server username.. 