code: def launch_app(datamodule: DataModule) -> "App":
      return App(datamodule)
  
file_path: lightning-flash/src/flash/pointcloud/segmentation/open3d_ml/app.py
imports: import torch
  from flash.core.data.data_module import DataModule
  from flash.core.data.io.input import DataKeys
  from flash.core.utilities.imports import _TOPIC_POINTCLOUD_AVAILABLE
label_desc: Use image node_id 1 for calling a global function with example usage: launch_app(datamodule) and returns: App