<s> """<STR_LIT>""" <EOL> from abc import ( <EOL> ABCMeta , <EOL> abstractmethod , <EOL> ) <EOL> from six import with_metaclass <EOL> class PipelineLoader ( with_metaclass ( ABCMeta ) ) : <EOL> """<STR_LIT>""" <EOL> @ abstractmethod <EOL> def load_adjusted_array ( self , columns , dates , assets , mask ) : <EOL> pass </s>
