'Views' object has no attribute 'get_by_id'. #877

Describe the bug
SERVER.views.get_by_id('some_id')
returns 'Views' object has no attribute 'get_by_id'.

It works with other endpoints, like workbooks for example.

On a separate note. It is missing an 's' in the example code in the docs:
https://tableau.github.io/server-client-python/docs/api-ref#views
view = server.view.get_by_id

Versions
Details of your environment, including:

• Tableau Server version: 2020.4
• Python version: 3.7
• TSC library version: 3.10
• Package: tableauserverclient 0.15.0

To Reproduce
SERVER.views.get_by_id('some_id')

Results
'Views' object has no attribute 'get_by_id'.

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