parameters: (self, event)
docstring: Maybe purge orphaned data due to a TensorFlow crash.
  
      When TensorFlow crashes at step T+O and restarts at step T, any events
      written after step T are now "orphaned" and will be at best misleading if
      they are included in TensorBoard.
  
      This logic attempts to determine if there is orphaned data, and purge it
      if it is found.
  
      Args:
        event: The event to use as a reference, to determine if a purge is needed.
docstring_summary: Maybe purge orphaned data due to a TensorFlow crash.
docstring_tokens: Maybe purge orphaned data due to a TensorFlow crash .
function: def _MaybePurgeOrphanedData(self, event):
      """Maybe purge orphaned data due to a TensorFlow crash.
  
      When TensorFlow crashes at step T+O and restarts at step T, any events
      written after step T are now "orphaned" and will be at best misleading if
      they are included in TensorBoard.
  
      This logic attempts to determine if there is orphaned data, and purge it
      if it is found.
  
      Args:
        event: The event to use as a reference, to determine if a purge is needed.
      """
      if not self.purge_orphaned_data:
        return
      ## Check if the event happened after a crash, and purge expired tags.
      if self.file_version and self.file_version >= 2:
        ## If the file_version is recent enough, use the SessionLog enum
        ## to check for restarts.
        self._CheckForRestartAndMaybePurge(event)
      else:
        ## If there is no file version, default to old logic of checking for
        ## out of order steps.
        self._CheckForOutOfOrderStepAndMaybePurge(event)
function_tokens: def _MaybePurgeOrphanedData ( self , event ) : if not self . purge_orphaned_data : return ## Check if the event happened after a crash, and purge expired tags. if self . file_version and self . file_version >= 2 : ## If the file_version is recent enough, use the SessionLog enum ## to check for restarts. self . _CheckForRestartAndMaybePurge ( event ) else : ## If there is no file version, default to old logic of checking for ## out of order steps. self . _CheckForOutOfOrderStepAndMaybePurge ( event )