code: def _flatten_stages(self) -> "Component":
      merged_parameters = self.parameters
      merged_artifacts = self.artifacts
      for stage_cpn in self.stage_components:
          stage_cpn = stage_cpn._flatten_stages()
          merged_parameters = merged_parameters.merge(
              stage_cpn.parameters
          )
          merged_artifacts = merged_artifacts.merge(stage_cpn.artifacts)
  
      return Component(
          name=self.name,
          roles=self.roles,
          provider=self.provider,
          version=self.version,
          description=self.description,
          callback=self.callback,
          parameters=merged_parameters,
          artifacts=merged_artifacts,
          is_subcomponent=self.is_subcomponent,
      )
  
imports: import inspect
  import logging
  from typing import List, Optional
  from fate.components.core.essential import CROSS_VALIDATION, DEFAULT, PREDICT, TRAIN, Role, Stage
  from ._component_artifact import ArtifactDescribeAnnotation, ComponentArtifactDescribes
  from ._parameter import ComponentParameterDescribes, ParameterDescribeAnnotation
label_desc: Use image node_id 4 for calling the Component obj's underlying member method code with example usage: obj._flatten_stages() and returns: Component