code: def classification_isolation_forest_pipeline():
      """
      Returns pipeline with the following structure:
  
      .. image:: img_classification_pipelines/isolation_forest.png
        :width: 55%
  
      """
      node_first = PipelineNode("scaling")
      node_second = PipelineNode(
          "isolation_forest_class", nodes_from=[node_first]
      )
      node_final = PipelineNode("rf", nodes_from=[node_second])
      return Pipeline(node_final)
  
file_path: FEDOT/examples/simple/classification/classification_pipelines.py
imports: from fedot.core.pipelines.node import PipelineNode
  from fedot.core.pipelines.pipeline import Pipeline
label_desc: Use image node_id 6 for calling a global function with example usage: classification_isolation_forest_pipeline() and returns: Pipeline