ArcGIS Pro 2.9 API Reference Guide
GraduatedSymbolsRendererDefinition Class
Members 

ArcGIS.Desktop.Mapping Namespace : GraduatedSymbolsRendererDefinition Class
Represents graduated symbol renderer definition to show qualitative differences in feature values with varying symbol sizes.
Object Model
GraduatedSymbolsRendererDefinition ClassCIMSymbolReference ClassCIMColorRamp ClassCIMSymbolReference ClassCIMSymbolReference ClassCIMSymbolReference Class
Syntax
public class GraduatedSymbolsRendererDefinition : ClassBreaksRendererDefinition 
Public Class GraduatedSymbolsRendererDefinition 
   Inherits ClassBreaksRendererDefinition
Remarks
GraduatedSymbolsRendererDefinition class allow you to define parameters to create renderers to draw features with symbols with graduated size determined based on the values of a quantitative attribute that is statistically grouped by a classification algorithm.
Once you define a graduated symbol renderer, you can call a FeatureLayer's CreateRenderer and SetRenderer methods to create and assign a renderer to a feature layer.
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Mapping.LayerDrawingDefinition
      ArcGIS.Desktop.Mapping.RendererDefinition
         ArcGIS.Desktop.Mapping.ClassBreaksRendererDefinition
            ArcGIS.Desktop.Mapping.GraduatedSymbolsRendererDefinition

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

See Also

Reference

GraduatedSymbolsRendererDefinition Members
ArcGIS.Desktop.Mapping Namespace