You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: service.go
    path of file: ./repos/gardener/pkg/component/kubernetes/apiserverexposure
    
    the code of the file until where you have to start completion: // Copyright 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software

    
func (s *service) Wait(ctx context.Context) error {
	ctx, cancel := context.WithTimeout(ctx, DefaultTimeout)
	defer cancel()

	return s.waiter.Until(ctx, DefaultInterval, func(ctx context.Context) (done bool, err error) {
		// this ingress can be either the kube-apiserver's service or istio's IGW loadbalancer.
		svc := &corev1.Service{
			ObjectMeta: metav1.ObjectMeta{
				Name:      s.loadBalancerServiceKeyFunc().Name,
				Namespace: s.loadBalancerServiceKeyFunc().Namespace,
			},
		}

		loadBalancerIngress, err := kubernetesutils.GetLoadBalancerIngress(ctx, s.client, svc)
		if err != nil {
			s.log.Info("Waiting until the kube-apiserver ingress LoadBalancer deployed in the Seed cluster is ready", "service", client.ObjectKeyFromObject(svc))
			return retry.MinorError(fmt.Errorf("KubeAPI Server ingress LoadBalancer deployed in the Seed cluster is ready: %v", err))
		}
		s.ingressFunc(loadBalancerIngress)

		return retry.Ok()
	})
}