ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Geometry Namespace / IGeometryEngine Interface / SideBuffer Method

SideBuffer Method (IGeometryEngine)
Overload List
OverloadDescription
Constructs a buffer on one side of a polyline  
Constructs a buffer on one side of a polyline  
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.2 or higher.
See Also