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: balancer.go
    path of file: ./repos/zeebe/clients/go/vendor/google.golang.org/grpc/balancer
    
    the code of the file until where you have to start completion: /*
 *
 * Copyright 2017 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except i
    
func Register(b Builder) {
	if strings.ToLower(b.Name()) != b.Name() {
		// TODO: Skip the use of strings.ToLower() to index the map after v1.59
		// is released to switch to case sensitive balancer registry. Also,
		// remove this warning and update the docstrings for Register and Get.
		logger.Warningf("Balancer registered with name %q. grpc-go will be switching to case sensitive balancer registries soon", b.Name())
	}
	m[strings.ToLower(b.Name())] = b
}