There is a command group 'az_iot_du_update'. This group of commands could 'device update update management'. 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_du_update_stage'.The syntax is: az iot du update stage --account
                       --instance
                       --manifest-path
                       --storage-account
                       --storage-container
                       [--friendly-name]
                       [--overwrite {false, true}]
                       [--resource-group]
                       [--storage-subscription]
                       [--then-import {false, true}]. The 1th example of the child command would be to use it to 'stage a stand alone update  update files are expected to reside in the same directory as the manifest  the resultant import command can be executed at a later time to initiate the import of the staged update prior to sas token expiration', the syntax is: az iot du update stage -n {account_name} -i {instance_name} --storage-account {storage_account_name} --storage-container {storage_container_name} --manifest-path /path/to/manifest.json. The 2th example of the child command would be to use it to 'stage a stand alone update  after staging  import the update to the instance using a desired friendly name', the syntax is: az iot du update stage -n {account_name} -i {instance_name} --storage-account {storage_account_name} --storage-container {storage_container_name} --manifest-path /path/to/manifest.json --then-import --friendly-name myAptUpdate. The 3th example of the child command would be to use it to 'stage a multi reference update  update files will be uploaded to a storage blob container residing in a different subscription to the update account', the syntax is: az iot du update stage -n {account_name} -i {instance_name} --storage-account {storage_account_name} --storage-container {storage_container_name} --storage-subscription {storage_account_subscription} --manifest-path /path/to/parent/parent.manifest.json --manifest-path /path/to/leaf1/leaf1.manifest.json --manifest-path /path/to/leaf2/leaf2.manifest.json. The 4th example of the child command would be to use it to 'stage a multi reference update  overwriting existing blobs if they exist  after staging  import the update to the instance', the syntax is: az iot du update stage -n {account_name} -i {instance_name} --storage-account {storage_account_name} --storage-container {storage_container_name} --manifest-path /path/to/parent/parent.manifest.json --manifest-path /path/to/leaf1/leaf1.manifest.json --manifest-path /path/to/leaf2/leaf2.manifest.json --then-import --overwrite. The parameter '--account -n' is required. It is used to device update account name. you can configure the default account name using `az config set defaults.adu_account=<name>`.. The parameter '--instance -i' is required. It is used to device update instance name. you can configure the default instance name using `az config set defaults.adu_instance=<name>`.. The parameter '--manifest-path' is required. It is used to local file path to the import manifest that should be staged. can be used 1 or more times.. The parameter '--storage-account' is required. It is used to desired storage account name to stage import manifest artifacts.. The parameter '--storage-container' is required. It is used to desired storage container name to stage import manifest artifacts.. The parameter '--friendly-name' is optional. friendly name associated with the update definition.. The parameter '--overwrite' is optional. flag indicating whether existing blobs should be overwritten if a conflict exists.. The parameter '--resource-group -g' is optional. device update account resource group name. you can configure the default group using `az config set defaults.adu_group=<name>`.. The parameter '--storage-subscription' is optional. desired storage account subscription to stage import manifest artifacts. applicable when the storage and device update accounts are in different subscriptions.. The parameter '--then-import' is optional. flag indicating whether the update should be imported after staging.. 