ProductVideos cannot create, delete, or delete_all  #77

From the documentation in the following URL, you would think you can create, delete, and delete_all videos for a product:

https://developer.bigcommerce.com/legacy/v2-catalog-products/v2-product-videos

newer documentation:

https://developer.bigcommerce.com/api-reference/catalog/catalog-api/product-videos/

Expected behavior

I expected that you would be able to something like this and it create a video:
video = api.ProductVideos.create(parentid=product_id, url=video_url)

Actual behavior

If I try to create a video I get the following error:
AttributeError: type object 'ProductVideos' has no attribute 'create'

Steps to reproduce behavior

product_id = "id of product"
video_url = "some youtube video url"
video = api.ProductVideos.create(parentid=product_id, url=video_url)