Determines whether the [P:EndpointArn] property is set.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public bool IsSetEndpointArn()
 Return Value
 Return Valuetrue if the endpoint ARN is set; otherwise, false.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public bool IsSetEndpointArn()
 Return Value
 Return Value