human
Solve the following python programming problem given the following code:
def generate_users_and_groups(self) : 
    self.stdout.write ('Generating Users and Groups') 
    def add_user_and_group(username, password, group_name, permissions) : 
        group = GroupFactory (name = group_name) 
        for codename in permissions : 
            group.permissions.add (Permission.objects.get (codename = codename)) 
user = UserFactory (username = username, is_staff = True) 
        user.regions.add (RegionFactory ()) 
        user.set_password (password) 
        user.groups.add (group) 
        user.save () 
dc_permissions = ['view_region', 'view_region_country_field', 'view_region_id_field', 'view_region_name_field', 'add_assetmodel', 'change_assetmodel', 'change_assetmodel_category_field', 'change_assetmodel_cores_count_field', 'change_assetmodel_has_parent_field', 'change_assetmodel_height_of_device_field', 'change_assetmodel_manufacturer_field', 'change_assetmodel_name_field', 'change_assetmodel_power_consumption_field', 'change_assetmodel_type_field', 'change_assetmodel_visualization_layout_back_field', 'change_assetmodel_visualization_layout_front_field', 'delete_assetmodel', 'view_assetmodel', 'view_assetmodel_category_field', 'view_assetmodel_cores_count_field', 'view_assetmodel_has_parent_field', 'view_assetmodel_height_of_device_field', 'view_assetmodel_id_field', 'view_assetmodel_manufacturer_field', 'view_assetmodel_name_field', 'view_assetmodel_power_consumption_field', 'view_assetmodel_type_field', 'view_assetmodel_visualization_layout_back_field', 'view_assetmodel_visualization_layout_front_field', 'add_environment', 'change_environment', 'delete_environment', 'view_environment', 'add_service', 'change_service', 'delete_service', 'view_service', 'add_serviceenvironment', 'change_serviceenvironment', 'change_serviceenvironment_content_type_field', 'change_serviceenvironment_environment_field', 'change_serviceenvironment_parent_field', 'change_serviceenvironment_remarks_field', 'change_serviceenvironment_service_env_field', 'change_serviceenvironment_service_field',...

    
    

    Fix the buggy line: add_user_and_group ('bo', 'bo', 'Back Office Group', self)
assistant
#Here is Python program to fix the buggy line: add_user_and_group ('bo', 'bo', 'Back Office Group', self)
.

add_user_and_group ('bo', 'bo', 'Back Office Group', bo_permissions)