grpc_v2.go
func (g GRPCLoggerV2) Infof(format string, args ...interface{}) {
	g.l.Infof(format, args...)
}
func (g GRPCLoggerV2) Infof(format string, args ...interface{}) {
	g.l.Infof(format, args...)
}
// Infof calls Logger.Infof method with provided arguments.