def custom_extension(self) -> CustomExtensionRequestBuilder:
        """
        Provides operations to manage the customExtension property of the microsoft.graph.customExtensionStageSetting entity.
        """
        from .custom_extension.custom_extension_request_builder import CustomExtensionRequestBuilder

        return CustomExtensionRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to manage the customExtension property of the microsoft.graph.customExtensionStageSetting entity.
        
msgraph/generated/identity_governance/entitlement_management/assignment_policies/item/custom_extension_stage_settings/item/custom_extension_stage_setting_item_request_builder.py