<s> from abc import ABCMeta , abstractmethod <EOL> class SequenceLearner ( object ) : <EOL> __metaclass__ = ABCMeta <EOL> @ abstractmethod <EOL> def fit ( self , X , y ) : <EOL> '''<STR_LIT>''' <EOL> pass <EOL> @ abstractmethod <EOL> def predict ( self , X ) : <EOL> '''<STR_LIT>''' <EOL> pass </s>
