There is a command group 'az_dt_role assignment'. This group of commands could 'manage rbac role assignments for a digital twins instance'. 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_dt_role assignment_delete'.The syntax is: az dt role-assignment delete --dt-name
                             [--assignee]
                             [--resource-group]
                             [--role]. The 1th example of the child command would be to use it to 'remove a user from a specific role assignment of a digital twins instance', the syntax is: az dt role-assignment delete -n {instance_name} --assignee "removeuser@microsoft.com" --role "Azure Digital Twins Data Reader". The 2th example of the child command would be to use it to 'remove a user from all assigned roles of a digital twins instance', the syntax is: az dt role-assignment delete -n {instance_name} --assignee "removeuser@microsoft.com". The parameter '--dt-name --dtn -n' is required. It is used to digital twins instance name.. The parameter '--assignee' is optional. represent a user, group, or service principal. supported format: object id, user sign-in name, or service principal name.. The parameter '--resource-group -g' is optional. digital twins instance resource group. you can configure the default group using `az configure --defaults group=<name>`.. The parameter '--role' is optional. role name or id.. 