File s2/require.d/ostream.s2 artifact 964b1fb783 part of check-in 8a4665bffa

/**
   A require() module providing an "ostream" object. It overloads the
   << operator and sends all arguments to s2.io.output().
*/
return {
    'operator<<': proc(self,arg){out(arg); return this}
        .importSymbols({out: s2.io.output})
};