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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _time_delta_from_info(info):
 """Format the elapsed time for the given TensorBoardInfo. Args: info: A TensorBoardInfo value. Returns: A human-readable string describing the time since the server described by `info` started: e.g., "2 days, 0:48:58". """

  delta_seconds = int(time.time()) - info.start_time
  return str(datetime.timedelta(seconds=delta_seconds))