code: def initialize_vthunder(a10_cfg, device_cfg, client):
      
  
      vth = a10_cfg.get_vthunder_config()
      initialize_interfaces(vth, device_cfg, client)
      initialize_dns(vth, device_cfg, client)
      initialize_licensing(vth, device_cfg, client)
      initialize_sflow(vth, device_cfg, client)
docs: Perform initialization of system-wide settings