func RegistryType(s string) Option {
	return func(options *Options) {
		options.RegistryType = s
	}
}
Register service type. option is consul, etcd, etcdv3, zookeeper.
package remote
type Option func(*Options)
type Options struct {
	Addr 			string
	RegistryType 	string
	RegistryAddr 	string
	BasePath 		string
}
func newOptions(opts ...Option) *Options {
	opt := &Options{
	}
	for _,o := range opts {
		o(opt)
	}
	return opt
}
func Addr(s string) Option {
	return func(options *Options) {
		options.Addr = s
	}
}