def files(self):
    all_files = set()
    for label in self.filesets:
      all_files.update(self.filesets[label])
    return all_files
Inserts `value` into `list` to the position specified with `index`.
dataset/ETHPy150Open pantsbuild/pex/pex/common.py/Chroot.files--crossover with--dataset/ETHPy150Open shellderp/sublime-robot-plugin/lib/robot/libraries/Collections.py/_List.insert_into_list