Does the change based schedule in pipeline support listening to a specific file or can it only listen to folders?

Does the change based schedule in pipeline support listening to a specific file or can it only listen to folders?
I mean change of just test.txt file in path_on_datastore test-data/test.txt
or it is just working for folders test-data/ ?

from azureml.core.datastore import Datastore

datastore = Datastore(workspace=ws, name="workspaceblobstore")

schedule = Schedule.create(workspace=ws, name="My_Schedule",
pipeline_id=pub_pipeline_id,
experiment_name='Schedule-run-sample',
datastore=datastore,
wait_for_provisioning=True,
description="Schedule Run"),
path_on_datastore="file/path")