AttributeError: 'User' object has no attribute 'contents'

I'm trying to use .contents() to page through user history.  But I get the above error.  This works fine when using it with 'users'

users = hc.users(expand='items').contents() works fine

msgs = hc.get_user('email').history().contents() fails with the above error.  I thought .contents() would allow me to page through the results?  Right now .history() only returns 200 messages.
