How do I filter out a resource type from the graph plugin?

[angangwa]

I have been trying to filter out CloudWatch Dashboard from the graph using various combination of the code below. Will appreciate any insights into what I am doing wrong? Thanks!

graph_plugin: ICdkGraphPlugin = CdkGraphDiagramPlugin(
    diagrams=[
        IDiagramConfig(
            name="diagram",
            title="Praavi Infra Stack",
            format=DiagramFormat.PNG,
            filter_plan=Filters.exclude_cfn_type( # this raises an error
                [
                    FilterValue(value="AWS::CloudWatch::Dashboard")
                ]
            )
        )
        # Also tried this!
        # {
        #     "name": "diagram",
        #     "title": "Praavi Infra Stack",
        #     "format": DiagramFormat.PNG,
        #     "filter_plan": {
        #         "exclude": {
        #             "types": ["AWS::CloudWatch::Dashboard"]
        #         }
        #     }
        # }        
    ]
)
graph = CdkGraph(app, plugins=[graph_plugin])