def __init__(self, build_env, path, template_path, template_args,
      *args, **kwargs):
    super(MakoTemplateTask, self).__init__(build_env, *args, **kwargs)
    self.path = path
    self.template_path = template_path
    self.template_args = copy.deepcopy(template_args)
Get filenames from the RunKeys and download the files.
dataset/ETHPy150Open google/anvil-build/anvil/task.py/MakoTemplateTask.__init__--crossover with--dataset/ETHPy150Open google/grr/grr/lib/flows/general/registry.py/CollectRunKeyBinaries.ParseRunKeys