A function to get the length of a file.
from dlhub_sdk.client import DLHubClient
X = get_my_data() #replace this
dl = DLHubClient()
dl.run('ryan_globusid/FileLength', X)
from dlhub_sdk.client import DLHubClient
dl = DLHubClient()
dl.describe_servable('ryan_globusid/FileLength')
pip install dlhub_sdk