How to use the reprozip.common.File function in reprozip

for path in Path('/').recursedir(pattern):
            if path.is_dir():
                dirs.add(path)
            else:
                files.add(path)

    # Don't include directories whose files are included
    non_empty_dirs = set([Path('/')])
    for p in files | dirs:
        path = Path('/')
        for c in p.components[1:]:
            path = path / c
            non_empty_dirs.add(path)

    # Builds the final list
    return [File(p) for p in itertools.chain(dirs - non_empty_dirs, files)]

for path in Path('/').recursedir(pattern):
            if path.is_dir():
                dirs.add(path)
            else:
                files.add(path)

    # Don't include directories whose files are included
    non_empty_dirs = set([Path('/')])
    for p in files | dirs:
        path = Path('/')
        for c in p.components[1:]:
            path = path / c
            non_empty_dirs.add(path)

    # Builds the final list
    return [File(p) for p in itertools.chain(dirs - non_empty_dirs, files)]

import warnings

from reprozip import __version__ as reprozip_version
from reprozip import _pytracer
from reprozip.common import File, InputOutputFile, load_config, save_config, \
    FILE_READ, FILE_WRITE, FILE_LINK
from reprozip.tracer.linux_pkgs import magic_dirs, system_dirs, \
    identify_packages
from reprozip.utils import PY3, izip, iteritems, itervalues, \
    unicode_, flatten, UniqueNames, hsize, normalize_path, find_all_links


logger = logging.getLogger('reprozip')


class TracedFile(File):
    """Override of `~reprozip.common.File` that reads stats from filesystem.

    It also memorizes how files are used, to select files that are only read,
    and accurately guess input and output files.
    """
    #                               read
    #                              +------+
    #                              |      |
    #                read          v      +   write
    # (init) +------------------> ONLY_READ +-------> READ_THEN_WRITTEN
    #        |                                           ^         +
    #        |                                           |         |
    #        +-------> WRITTEN +--+                      +---------+
    #          write    ^         |                      read, write
    #                   |         |
    #                   +---------+

from rpaths import Path
import sqlite3
import sys

from reprozip import __version__ as reprozip_version
from reprozip import _pytracer
from reprozip.common import File, InputOutputFile, load_config, save_config, \
    FILE_READ, FILE_WRITE, FILE_LINK
from reprozip.tracer.linux_pkgs import magic_dirs, system_dirs, \
    identify_packages
from reprozip.utils import PY3, izip, iteritems, itervalues, \
    unicode_, flatten, UniqueNames, hsize, normalize_path, find_all_links, \
    tty_prompt


class TracedFile(File):
    """Override of `~reprozip.common.File` that reads stats from filesystem.

    It also memorizes how files are used, to select files that are only read,
    and accurately guess input and output files.
    """
    #                               read
    #                              +------+
    #                              |      |
    #                read          v      +   write
    # (init) +------------------> ONLY_READ +-------> READ_THEN_WRITTEN
    #        |                                           ^         +
    #        |                                           |         |
    #        +-------> WRITTEN +--+                      +---------+
    #          write    ^         |                      read, write
    #                   |         |
    #                   +---------+