def activity(self) -> ActivityRequestBuilder:
        """
        Provides operations to manage the activity property of the microsoft.graph.activityHistoryItem entity.
        """
        from .activity.activity_request_builder import ActivityRequestBuilder

        return ActivityRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to manage the activity property of the microsoft.graph.activityHistoryItem entity.
        
msgraph/generated/users/item/activities/item/history_items/item/activity_history_item_item_request_builder.py