ArcGIS Pro 2.6 API Reference Guide
ILayerContainer Interface
Members 

ArcGIS.Desktop.Mapping Namespace : ILayerContainer Interface
Provides read-only access to layers inside the layer container.
Object Model
ILayerContainer InterfaceLayer Class
Syntax
public interface ILayerContainer 
Public Interface ILayerContainer 
Remarks
A layer container could be a map, a group layer or a composite layer that implements ILayerContainer
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

ILayerContainer Members
ArcGIS.Desktop.Mapping Namespace