<s> class FilterBase : <EOL> def __init__ ( self , verbose ) : <EOL> self . verbose = verbose <EOL> def filter_css ( self , css ) : <EOL> raise NotImplementedError <EOL> def filter_js ( self , js ) : <EOL> raise NotImplementedError <EOL> class FilterError ( Exception ) : <EOL> """<STR_LIT>""" <EOL> pass </s>
