code: func (o *EndpointControllerOptions) ApplyTo(cfg *endpointconfig.EndpointControllerConfiguration) error {
  	if o == nil {
  		return nil
  	}
  
  	cfg.ConcurrentEndpointSyncs = o.ConcurrentEndpointSyncs
  
  	return nil
  }
docs: // ApplyTo fills up EndPointController config with options.