def poll(self):
        if self.proc.poll() is not None:
            self.wait()
        return self._returncode is not None
Converts batch of values using passed HuntOutputPlugin.
dataset/ETHPy150Open tomerfiliba/plumbum/plumbum/commands/modifiers.py/Future.poll--crossover with--dataset/ETHPy150Open google/grr/grr/tools/export_plugins/plugin.py/OutputPluginBatchConverter.ConvertBatch