code: def _extract_operation_name(node: PipelineNode):
      return node.fitted_operation.__class__.__name__
  
imports: import os
  from abc import ABC, abstractmethod
  from io import BytesIO
  from typing import Any, Optional, Union
  import joblib
  import numpy
  from golem.core.log import default_log
  from fedot.core.pipelines.node import PipelineNode
label_desc: Use image node_id 3 for calling a global function with example usage: _extract_operation_name(node) and returns: node