class_docstr: UpstreamComponent.
code: def __init__(self):
      spec = UpstreamComponentSpec(
          first_model=types.Channel(type=standard_artifacts.Model),
          second_model=types.Channel(type=standard_artifacts.Model),
          third_model=types.Channel(type=standard_artifacts.Model),
      )
      super().__init__(spec=spec)
  
imports: import os
  from typing import Any, Dict, List, Optional
  from tfx import types
  from tfx.dsl.components.base import base_component
  from tfx.dsl.components.base import base_executor
  from tfx.dsl.components.base import executor_spec
  from tfx.orchestration import pipeline
  from tfx.types import component_spec
  from tfx.types import standard_artifacts
label_desc: Use image node_id 1 to create a new UpstreamComponent object from inherited base classes: base_component with example: obj = UpstreamComponent()