def next(msg)
      # be tolerant of the fact that there might be other 
      # stuff in the log file.
      next_line do |input, line|
        if input.key?('sequence')
          msg.populate(line, input) unless @sequence && @sequence != input['sequence']
          return true
        end
      end
      return false
    end
def next(msg)
      # be tolerant of the fact that there might be other 
      # stuff in the log file.
      next_line do |input, line|
        if input.key?('sequence')
          msg.populate(line, input) unless @sequence && @sequence != input['sequence']
          return true
        end
      end
      return false
    end
Populates a message from the next line in the