code: def run(self, payload):
      assert payload.value == 42
  
file_path: pytorch-lightning/examples/app/payload/app.py
imports: from lightning.app import LightningApp, LightningFlow, LightningWork
  from lightning.app.storage import Payload
label_desc: Use image node_id 1 for calling the DestinationWork obj's underlying member method code with example usage: obj.run(payload) without return types