def to_binary(self):
        assert len(self.when_tuples) > 0
        if len(self.when_tuples) == 1:
            return self
        else:
            new_when_tuples = [self.when_tuples[0]]
            new_else = Case(self.when_tuples[1:], self.else_expr)
            return Case(new_when_tuples, new_else)
Return a dictionary of scheme -> proxy server URL mappings.
dataset/ETHPy150Open uwescience/raco/raco/expression/expression.py/Case.to_binary--crossover with--dataset/ETHPy150Open ofermend/medicare-demo/socialite/jython/Lib/urllib.py/getproxies