There is a command group 'az_iot_hub_message endpoint_create'. This group of commands could 'add an endpoint to 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_message endpoint_create_storage container'.The syntax is: az iot hub message-endpoint create storage-container --container
                                                     --en
                                                     --hub-name
                                                     [--batch-frequency]
                                                     [--chunk-size]
                                                     [--connection-string]
                                                     [--encoding {avro, json}]
                                                     [--endpoint-account]
                                                     [--endpoint-resource-group]
                                                     [--endpoint-subscription-id]
                                                     [--endpoint-uri]
                                                     [--ff]
                                                     [--identity]
                                                     [--resource-group]. The 1th example of the child command would be to use it to 'create a key based storage container endpoint for an iot hub', the syntax is: az iot hub message-endpoint create storage-container -n {iothub_name} --en {endpoint_name} --container {container_name} --endpoint-account {account_name}. The 2th example of the child command would be to use it to 'create a storage container endpoint for an iot hub using a connection string  the endpoint uri is omitted', the syntax is: az iot hub message-endpoint create storage-container -n {iothub_name} --en {endpoint_name} -c {connection_string} --container {container_name}. The 3th example of the child command would be to use it to 'create a storage container endpoint for an iot hub using system assigned identity with the given batch frequency  chunk size  and file name format  the endpoint must be specified', the syntax is: az iot hub message-endpoint create storage-container -n {iothub_name} --en {endpoint_name} --endpoint-uri {endpoint_uri} --container {container_name} -b {batch_frequency} -w {chunk_size} --ff {file_format} --identity [system]. The 4th example of the child command would be to use it to 'create a storage container endpoint for an iot hub using user assigned identity with json encoding  the endpoint must be specified', the syntax is: az iot hub message-endpoint create storage-container -n {iothub_name} --en {endpoint_name} --endpoint-uri {endpoint_uri} --container {container_name} --encoding json --identity {user_identity_resource_id}. The parameter '--container --container-name' is required. It is used to name of the storage container.. The parameter '--en --endpoint --endpoint-name' is required. It is used to name of the routing endpoint.. The parameter '--hub-name -n' is required. It is used to iot hub name.. The parameter '--batch-frequency -b' is optional. request batch frequency in seconds. the maximum amount of time that can elapse before data is written to a blob, between 60 and 720 seconds.. The parameter '--chunk-size -w' is optional. request chunk size in megabytes(mb). the maximum size of blobs, between 10 and 500 mb.. The parameter '--connection-string -c' is optional. connection string of the routing endpoint.. The parameter '--encoding' is optional. encoding format for the container.. The parameter '--endpoint-account' is optional. the account name for the endpoint resource.. The parameter '--endpoint-resource-group --erg -r' is optional. resource group of the endpoint resoure. if not provided, the iot hub's resource group will be used.. The parameter '--endpoint-subscription-id -s' is optional. subscription id of the endpoint resource. if not provided, the iot hub's subscription will be used.. The parameter '--endpoint-uri' is optional. the uri of the endpoint resource.. The parameter '--ff --file-name-format' is optional. file name format for the blob. the file name format must contain {iothub}, {partition}, {yyyy}, {mm}, {dd}, {hh} and {mm} fields. all parameters are mandatory but can be reordered with or without delimiters.. The parameter '--identity' is optional. use a system-assigned or user-assigned managed identity for endpoint authentication. use "[system]" to refer to the system-assigned identity or a resource id to refer to a user-assigned identity.. The parameter '--resource-group -g' is optional. name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. 