var LOGGER = &Logger{log.New(os.Stderr, "", log.LstdFlags)}
func Fatal(format string, v ...interface{})
fatal is like panic except it displays only the current goroutine's stack.
func PartitionString(s string, chunkSize int) []string
partitionString partitions the string into chunks of given size, with the last chunk of variable size.
type Logger struct {
*log.Logger
}