<s> class BaseStorage ( object ) : <EOL> def all_objects ( self , request ) : <EOL> raise NotImplementedError ( ) <EOL> def list ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def single ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def create ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def update ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def delete_list ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def delete_single ( self , ** kwargs ) : <EOL> raise NotImplementedError ( ) <EOL> def rollback ( self , bundles ) : <EOL> raise NotImplementedError ( ) </s>
