#NEWLINE# def _rollback_impl( self ) : #NEWLINE# #INDENT# for t in set ( self . _connections . values ( ) ) : #NEWLINE# #INDENT# t [ 1 ] . rollback ( ) #NEWLINE# #UNINDENT# if self . session . _enable_transaction_accounting : #NEWLINE# #INDENT# self . _restore_snapshot ( dirty_only = self . nested ) #NEWLINE# #UNINDENT# self . session . dispatch . after_rollback ( self . session )