PointCloud units on importing .PTS file

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I am indexing the attached .PTS file using "Insert Point Cloud" button. I keep "Import Units" as "Meters" as shown in the screenshot below:
If you open the .PTS file in the text editor, you'll notice that all the points have X coordinate value between 154 m and 155.5 m, i.e. between approx 505 ft and 510 ft. Next screenshot shows the values of minX and maxX, the min and max X coordinates of the point cloud's bounding box. The min value is 507.4 ft and the max value is 508.8 ft. From what I understand, Revit stores length in feet internally, so these bounding box values look correct.
Now I look at the individual point values. Instead of showing these values in feet, I am seeing these values in meters.
Since I am not getting the values in feet always, I need to know the units of the point values. Is this unit stored somewhere? How do I access it from the API?