class_docstr: Base class used for composite model structure definition
  
  Args:
      nodes: :obj:`PipelineNode` object(s)
      use_input_preprocessing: whether to do input preprocessing or not, ``True`` by default.
docstr: Changes number of jobs for nodes
  
  :param n_jobs: required number of the jobs to assign to the nodes
docstr_tok: ["Changes","number","of","jobs","for","nodes",":","param","n_jobs",":","required","number","of","the","jobs","to","assign","to","the","nodes"]
code: def replace_n_jobs_in_nodes(self, n_jobs: int):
      """
      Changes number of jobs for nodes
  
      :param n_jobs: required number of the jobs to assign to the nodes
      """
      for node in self.nodes:
          for param in ["n_jobs", "num_threads"]:
              if param in node.content["params"]:
                  node.content["params"][param] = n_jobs
  
imports: from copy import deepcopy
  from datetime import timedelta
  from os import PathLike
  from typing import Optional, Tuple, Union, Sequence, List, Dict
  import func_timeout
  from golem.core.dag.graph import Graph
  from golem.core.dag.graph_delegate import GraphDelegate
  from golem.core.dag.graph_node import GraphNode
  from golem.core.dag.graph_utils import distance_to_primary_level, graph_structure
  from golem.core.dag.linked_graph import LinkedGraph
  from golem.core.log import default_log
  from golem.core.optimisers.timer import Timer
  from golem.core.paths import copy_doc
  from golem.utilities.serializable import Serializable
  from golem.visualisation.graph_viz import NodeColorType
  from fedot.core.caching.pipelines_cache import OperationsCache
  from fedot.core.caching.preprocessing_cache import PreprocessingCache
  from fedot.core.data.data import InputData, OutputData
  from fedot.core.data.multi_modal import MultiModalData
  from fedot.core.operations.data_operation import DataOperation
  from fedot.core.operations.model import Model
  from fedot.core.pipelines.node import PipelineNode
  from fedot.core.pipelines.template import PipelineTemplate
  from fedot.core.repository.tasks import TaskTypesEnum
  from fedot.core.visualisation.pipeline_specific_visuals import PipelineVisualizer
  from fedot.preprocessing.dummy_preprocessing import DummyPreprocessor
  from fedot.preprocessing.preprocessing import DataPreprocessor
label_desc: Use image node_id 20 for calling the Pipeline obj's underlying member method code with example usage: obj.replace_n_jobs_in_nodes(n_jobs) without return types