dynamic pyCollectionObj = new PyObject(collectionObjIntPtr);
foreach (dynamic item in pyCollectionObj)
{
    // This code currently does not works.
}
...

### Does this close any currently open issues?
No
...

### Any other comments?
Tests are failed due to NUnit Assert.Equals behavior. When object is IEnumerable Assert.Equals also compares all items.
...

### Checklist

Check all those that are applicable and complete.

-   [ ] Make sure to include one or more tests for your change
-   [ ] If an enhancement PR, please create docs and at best an example
-   [ ] Add yourself to [`AUTHORS`](../blob/master/AUTHORS.md)
-   [ ] Updated the [`CHANGELOG`](../blob/master/CHANGELOG.md)