'Adds custom configuration parameters to argument parser.
This is a helper function for make_deployer().'

@classmethod
def validate_options_helper(cls, options):

    if (not options.deploy_azure_resource_group):
        raise ValueError('--deploy_azure_resource_group    not    specified.')
    if (not options.deploy_azure_name):
        raise ValueError('--deploy_azure_name    not    specified.')
    if options.deploy_deploy:
        response = run_quick('az    vm    show    --resource-group    {rg}    --vm-name    {name}'.format(rg=options.deploy_azure_resource_group, name=options.deploy_azure_name), echo=False)
        if (response.returncode == 0):
            raise ValueError('"{name}"    already    exists    in    resource-group={rg}'.format(name=options.deploy_azure_name, rg=options.deploy_azure_resource_group))
