class_docstr: Base runner class for TFX.
  
  This is the base class for every TFX runner.
docstr: Runs logical TFX pipeline on specific platform.
  
  Args:
    pipeline: logical TFX pipeline definition.
  
  Returns:
    Platform-specific object.
code: def run(self, pipeline) -> Optional[Any]:
      """Runs logical TFX pipeline on specific platform.
  
      Args:
        pipeline: logical TFX pipeline definition.
  
      Returns:
        Platform-specific object.
      """
      pass
  
file_path: tfx/tfx/orchestration/tfx_runner.py
imports: import abc
  from typing import Any, Optional
  from tfx.orchestration.config import pipeline_config
  from tfx.utils import doc_controls
label_desc: Use image node_id 2 for calling the TfxRunner obj's underlying member method code with example usage: obj.run(pipeline) without return types