Usage Values Not Being Returned

[mpboyle]

I'm wondering why usage values are not returned for certain item types, specifically hosted tile layers, when using the Python API?  When viewing the Usage tab for these items, counts appear. However, when using the Python API, either the counts are way off, or not even returned.

Is this a known limitation based on item type?

Below are a few examples:

Example 1: Hosted Tile Layer

Item usage via the item page

Item usage via the Python API. The usage values ("num") are not close.

Example 2: Hosted Vector Tile Layer

Item usage via the item page

Item usage via the Python API. The data key is an empty list.

Example 3: Hosted Feature Layer

Item usage via the item page

Item usage via the Python API --- matches the item page