:rtype: :class:`User` object if user is a member of list
-.. method:: API.subscribe_list(owner, slug)
+.. method:: API.subscribe_list(list_id/slug, [owner_id/owner_screen_name])
- Make the authenticated user follow the specified list.
+ Subscribes the authenticated user to the specified list.
- :param owner: |list_owner|
+ :param list_id: |list_id|
:param slug: |slug|
+ :param owner_id: |owner_id|
+ :param owner_screen_name: |owner_screen_name|
:rtype: :class:`List` object