class_docstr: Definition for Manual Node.
  
  Important: This feature is currently experimental and only available in the
  TFX experimental orchestrator.
  
  Manual Node is a special TFX node which requires manual operation to complete.
  Example usage:
  
  ```
  trainer = Trainer(...)
  manual_node = ManualNode(
      description='Please manually inspect the generated model before pushing.'
  )
  pusher = Pusher(...)
  
  manual_node.add_upstream_node(trainer)
  manual_node.add_downstream_node(pusher)
  ```
code: def outputs(self) -> Dict[str, Any]:
      return {}
  
file_path: tfx/tfx/dsl/components/common/manual_node.py
imports: from typing import Any, Dict
  from tfx.dsl.components.base import base_node
label_desc: Use image node_id 3 for calling the ManualNode obj's underlying member method code with example usage: obj.outputs() and returns: dict