Power BI Dataset as data source for SSAS Tabular Model

Thank you both.

But what I'm looking for is to use the active Power BI dataset as a data source to be read by my model, along with the several other data sources that are working fine. The reason is that I need to access some data that is not easy to access from SSAS but is easy for Power BI. So I figured, let Power BI get the data from the original source each night, and then I can get the data from the Power BI dataset each night.

It does not appear to be possible, which is disappointing. I have one approach left to get the data into my model each night, but I was running into some obstacles making it much more difficult. But not impossible. So it looks like that is the approach I must take.

(The only approach that seems to be open to me is the ODBC driver in Excel made available by the data source publisher. So a series of Excel files that use the custom ODBC driver to query the various tables each night from the other source, PowerShell script that executes "Refresh All" on each Excel file, then SSAS reads the Excel files into the model. Then at the end of all that, the data is available for Power BI and other reports.)