#NEWLINE# @ contextmanager #NEWLINE# def _transport( self ) : #NEWLINE# #INDENT# '\n        _transport()\n\n        Yields a single transport to the caller from the default pool,\n        without retries.\n        ' #NEWLINE# pool = self . _choose_pool ( ) #NEWLINE# with pool . transaction ( ) as transport : #NEWLINE# #INDENT# ( yield transport )