code: def write(self, message, cur_time=None):
          
          if cur_time is None:
              cur_time = time.time()
          lines = self._line_buffer.add_string(message)
          for line in lines:
              #print('ts line', repr(line))
              timestamp = ''
              if self._prepend_timestamp:
                  timestamp = datetime.datetime.utcfromtimestamp(
                      cur_time).isoformat() + ' '
              line = u'{}{}{}'.format(self._line_prepend, timestamp, line)
              self._fsapi.push(self._filename, line)
docs: Write some text to the pusher.
  
          Args:
              message: a string to push for this file.
              cur_time: used for unit testing. override line timestamp.