Getting Property from ExpandoObject causing error

Question

I have an Expando Object ("points") with a property called "in". There is another property called "duration". points.duration returns as expected, but points.in throws error CS1001: Identifier expected. I can't change the name of the property right now, so how can I get the value without throwing the error. I'm assuming this has to do with some kind of keyword conflict.

 foreach (dynamic? point in points)
 {
     PointModel model = new PointModel
     {
         InPoint = point.in,
         Duration = point.duration,
         PointType = point.type
     };
    
     //other code here.
 }