<s> """<STR_LIT>""" <EOL> import sys <EOL> import collections <EOL> class Iterable ( object ) : <EOL> def __init__ ( self ) : <EOL> """<STR_LIT>""" <EOL> pass <EOL> def __iter__ ( self ) : <EOL> """<STR_LIT>""" <EOL> class Iterator ( collections . Iterable ) : <EOL> def __init__ ( self ) : <EOL> """<STR_LIT>""" <EOL> pass <EOL> if sys . version_info >= ( <NUM_LIT:3> , <NUM_LIT:0> ) : <EOL> def __next__ ( self ) : <EOL> """<STR_LIT>""" <EOL> pass <EOL> if sys . version_info < ( <NUM_LIT:3> , <NUM_LIT:0> ) : <EOL> def next ( self ) : <EOL> """<STR_LIT>""" <EOL> pass </s>
