docs: def ParseFromHumanReadable(self, string):
      """Parse a human readable string of a byte string.
  
      Args:
        string: The string to parse.
  
      Raises:
        DecodeError: If the string can not be parsed.
      """
      if not string:
        return None
  
      match = self.REGEX.match(string.strip().lower())
      if not match:
        raise DecodeError("Unknown specification for ByteSize %s" % string)
  
      multiplier = self.DIVIDERS.get(match.group(2))
      if not multiplier:
        raise DecodeError("Invalid multiplier %s" % match.group(2))
  
      # The value may be represented as a float, but if not dont lose accuracy.
      value = match.group(1)
      if "." in value:
        value = float(value)
      else:
        value = int(value)
  
      self._value = int(value * multiplier)