ArcGIS Pro 2.7 API Reference Guide
Propagator Class
Members 

ArcGIS.Core.Data.UtilityNetwork.Trace Namespace : Propagator Class
Propagator objects allow a subset of NetworkAttribute values to propagate through a network while executing a trace. These values can be tested to allow or disallow further traversal.
Object Model
Propagator ClassNetworkAttribute ClassField ClassNetworkAttribute Class
Syntax
public class Propagator 
Public Class Propagator 
Remarks
The canonical example is phase propagation- open devices along the network will restrict some phases from continuing along the trace. Propagators are only applicable to subnetwork-based traces (SubnetworkTracer, UpstreamTracer, etc.).
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Data.UtilityNetwork.Trace.Propagator

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

Propagator Members
ArcGIS.Core.Data.UtilityNetwork.Trace Namespace