Example Notebooks for 001259

[pauladkisson]

This PR adds two example notebooks for the 001259 dataset.

[pauladkisson]

From Alessandra:

from dandi.dandiapi import DandiAPIClient
import h5py
import remfile

dandiset_id = "001172"

with DandiAPIClient() as client:
    client.dandi_authenticate() #This line is necessary because the dataset is in embargoed mode and only owners can view the data, once it will be published this line can be removed.
    asset = client.get_dandiset(dandiset_id, 'draft').get_asset_by_path(nwbfile_path)
    s3_url = asset.get_content_url(follow_redirects=1, strip_query=False)

file = remfile.File(s3_url)
h5_file = h5py.File(file, "r")

[pauladkisson]

Thanks @alessandratrapani! Turns out the problem was strip_query. I had it set to True which removed some kind of authentication info present in the s3_url.