```
import os
from uuid import uuid4
from datetime import datetime, timezone
from dateutil.tz import tzlocal, tzutc
import pynwb
from dandi.pynwb_utils import make_nwb_file, metadata_nwb_file_fields

def simple1_nwb_metadata():
    # very simple assignment with the same values as the key with 1 as suffix
    metadata = {f: f"{f}1" for f in metadata_nwb_file_fields}
    metadata["identifier"] = uuid4().hex
    # subject_fields

    # tune specific ones:
    # Needs an explicit time zone since otherwise pynwb would add one
    # But then comparison breaks anyways any ways yoh have tried to set it
    # for datetime.now.  Taking example from pynwb tests
    metadata["session_start_time"] = datetime(2017, 4, 15, 12, tzinfo=tzutc())
    metadata["keywords"] = ["keyword1", "keyword 2"]
    # since NWB 2.1.0 some fields values become "arrays" which are
    # then reloaded as tuples, so we force them being tuples here
    # See e.g. NeurodataWithoutBorders/pynwb#1091
    for f in "related_publications", "experimenter":
        metadata[f] = (metadata[f],)
    return metadata

for i in os.listdir("."):
    if i.endswith("nwb"):
        b = simple1_nwb_metadata()
        a = make_nwb_file(
            i,
            subject=pynwb.file.Subject(
                subject_id="01",
                date_of_birth=datetime(2016, 12, 1, tzinfo=tzutc()),
                sex="U",
                species="Mus musculus",
            ),
            **b,
        )
        print(a)
```

Comment:
As per email correspondence with Philippe Kahane of the University of
Grenoble, dated 2022-12-09, we can release this without restrictive
licensing. Olivier David has not replied for multiple weeks now. I would
suggest proceeding and notifying again via email. We are not releasing
any data which is not already in this repository, we are simply updating
the licensing to permit what has already been done with this repo the
entire time.