code: def get_non_refinement_pipeline():
      """Create 3-level pipeline without class_decompose node"""
      node_scaling = PipelineNode("scaling")
      node_rf = PipelineNode("rf", nodes_from=[node_scaling])
      node_logit = PipelineNode("logit", nodes_from=[node_scaling])
      node_rf = PipelineNode("rf", nodes_from=[node_logit, node_rf])
      pipeline = Pipeline(node_rf)
      return pipeline
  
file_path: FEDOT/examples/advanced/decompose/classification_refinement_example.py
imports: from golem.core.tuning.simultaneous import SimultaneousTuner
  from cases.credit_scoring.credit_scoring_problem import get_scoring_data, calculate_validation_metric
  from fedot.core.data.data import InputData
  from fedot.core.pipelines.node import PipelineNode
  from fedot.core.pipelines.pipeline import Pipeline
  from fedot.core.pipelines.tuning.tuner_builder import TunerBuilder
  from fedot.core.repository.metrics_repository import ClassificationMetricsEnum
  from fedot.core.repository.tasks import Task, TaskTypesEnum
  from fedot.core.utils import set_random_seed
label_desc: Use image node_id 2 for calling a global function with example usage: get_non_refinement_pipeline() and returns: pipeline