<s> from __future__ import absolute_import <EOL> __all__ = ( '<STR_LIT>' , '<STR_LIT>' ) <EOL> def bitand ( a , b ) : <EOL> return a . bitand ( b ) <EOL> def bitor ( a , b ) : <EOL> return a . bitor ( b ) <EOL> try : <EOL> from django . db . models . expressions import ExpressionNode <EOL> ExpressionNode . BITAND <EOL> del ExpressionNode <EOL> except ImportError : <EOL> pass <EOL> except AttributeError : <EOL> def bitand ( a , b ) : <EOL> return a & b <EOL> def bitor ( a , b ) : <EOL> return a | b </s>
