There is a command group 'az_role_definition'. This group of commands could 'manage role definitions'. 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_role_definition_delete'.The syntax is: az role definition delete --name
                          [--custom-role-only {false, true}]
                          [--resource-group]
                          [--scope]. The 1th example of the child command would be to use it to 'delete a role definition   autogenerated', the syntax is: az role definition delete --name MyRole. The parameter '--name -n' is required. It is used to the role's name.. The parameter '--custom-role-only' is optional. custom roles only(vs. build-in ones).. The parameter '--resource-group -g' is optional. use it only if the role or assignment was added at the level of a resource group.. The parameter '--scope' is optional. scope at which the role assignment or definition applies to, e.g., /subscriptions/0b1f6471-1bf0-4dda-aec3-111122223333, /subscriptions/0b1f6471-1bf0-4dda-aec3-111122223333/resourcegroups/mygroup, or /subscriptions/0b1f6471-1bf0-4dda-aec3-111122223333/resourcegroups/mygroup/providers/microsoft.compute/virtualmachines/myvm.. 