parameters: (self, api, transfer)
docstring: Called intermittently to provide updates on the async API transfer
          operation.
  
          :param api: Reference to the API object.
          :param transfer: Information about the transfer.
docstring_summary: Called intermittently to provide updates on the async API transfer
          operation.
docstring_tokens: Called intermittently to provide updates on the async API transfer operation .
function: def onTransferUpdate(self, api, transfer):
          """
          Called intermittently to provide updates on the async API transfer
          operation.
  
          :param api: Reference to the API object.
          :param transfer: Information about the transfer.
          """
          logging.info('Transfer update ({} {});'
                       ' Progress: {} KB of {} KB, {} KB/s'
                       .format(transfer,
                               transfer.getFileName(),
                               transfer.getTransferredBytes() / 1024,
                               transfer.getTotalBytes() / 1024,
                               transfer.getSpeed() / 1024))
function_tokens: def onTransferUpdate ( self , api , transfer ) : logging . info ( 'Transfer update ({} {});' ' Progress: {} KB of {} KB, {} KB/s' . format ( transfer , transfer . getFileName ( ) , transfer . getTransferredBytes ( ) / 1024 , transfer . getTotalBytes ( ) / 1024 , transfer . getSpeed ( ) / 1024 ) )