There is a command group 'az_elastic san_volume_snapshot'. This group of commands could 'manage volume snapshot'. 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_elastic san_volume_snapshot_create'.The syntax is: az elastic-san volume snapshot create --creation-data
                                      --elastic-san
                                      --name
                                      --resource-group
                                      --volume-group
                                      [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]. The 1th example of the child command would be to use it to 'snapshot create', the syntax is: az elastic-san volume snapshot create -g "rg" -e "san_name" -v "vg_name" -n "snapshot_name" --creation-data '{source-id:"volume_id"}'. The parameter '--creation-data' is required. It is used to data used when creating a volume snapshot.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--elastic-san --elastic-san-name -e' is required. It is used to the name of the elasticsan.. The parameter '--name --snapshot-name -n' is required. It is used to the name of the volume snapshot within the given volume group.. 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 '--volume-group --volume-group-name -v' is required. It is used to the name of the volumegroup.. The parameter '--no-wait' is optional. do not wait for the long-running operation to finish.. 