<s> from zope . interface import Interface <EOL> class IControlHandlerFactory ( Interface ) : <EOL> def get_prompt_description ( self ) : <EOL> pass <EOL> def get_handler ( self ) : <EOL> pass <EOL> class IControlHandler ( Interface ) : <EOL> def handle_line ( self , line ) : <EOL> pass <EOL> class ICommandHandlerFactory ( Interface ) : <EOL> def get_handler ( self ) : <EOL> pass <EOL> class ICommandHandler ( Interface ) : <EOL> def handle_line ( self , line ) : <EOL> pass </s>
