code: func (o *NodeIPAMControllerOptions) ApplyTo(cfg *nodeipamconfig.NodeIPAMControllerConfiguration) error {
  	if o == nil {
  		return nil
  	}
  
  	cfg.ServiceCIDR = o.ServiceCIDR
  	cfg.NodeCIDRMaskSize = o.NodeCIDRMaskSize
  
  	return nil
  }
docs: // ApplyTo fills up NodeIpamController config with options.