This is a functionality that was available in ArcMap but is currently not included in ArcGIS Pro.
In ArcGIS Pro a user may create a raster function template
1. add the raster raster function stretch
2. import statistics from previously saved to a xml-file.
3. If the xml has histogram information the user can continue to explore the "PercentMinMax" stretch type.
4. A valid xml WITH the histogram information can NOT be exported using ArcGIS Pro - users has to rely on ArcMap to accomplish that.