You can call help on anything. Here I am asking for help on something I have no clue about:
>>> from server.db import db
>>> help(db)
help on Client in module google.cloud.firestore_v1beta1.client object:
class Client(google.cloud.client.ClientWithProject)
| Client(project=None, credentials=None, database='(default)')
|
| Client for interacting with Google Cloud Firestore API.
|
| .. note::
|
| Since the Cloud Firestore API requires the gRPC transport, no
| ``_http`` argument is accepted by this class.
...