class_docstr: The class defines the interface of nodes modifying tha data flow in the :class:`Pipeline`
  
  Args:
      operation_type: operation defined in the operation repository
      nodes_from: parent nodes where data comes from
      node_data: ``dict`` with :class:`InputData` for fit and predict stage
      kwargs: optional arguments (i.e. logger)
docstr: Updating content in the node 
docstr_tok: ["Updating","content","in","the","node"]
code: def _process_content_init(self, passed_content: dict) -> Operation:
      """Updating content in the node"""
      if isinstance(passed_content["name"], str):
          # Need to convert name of operation into operation class object
          operation_factory = OperationFactory(
              operation_name=passed_content["name"]
          )
          operation = operation_factory.get_operation()
  
          passed_content.update({"name": operation})
      else:
          operation = passed_content["name"]
      self.content = passed_content
  
      return operation
  
imports: from __future__ import annotations
  from dataclasses import dataclass
  from typing import Any, List, Optional, Tuple, Union
  import numpy
  from golem.core.dag.linked_graph_node import LinkedGraphNode
  from golem.core.log import default_log
  from golem.core.optimisers.timer import Timer
  from golem.serializers.serializer import register_serializable
  from fedot.core.data.data import InputData, OutputData
  from fedot.core.data.merge.data_merger import DataMerger
  from fedot.core.operations.factory import OperationFactory
  from fedot.core.operations.operation import Operation
  from fedot.core.operations.operation_parameters import OperationParameters
  from fedot.core.repository.operation_types_repository import OperationTypesRepository
  from fedot.core.utils import DEFAULT_PARAMS_STUB, NESTED_PARAMS_LABEL
label_desc: Use image node_id 3 for calling the PipelineNode obj's underlying member method code with example usage: obj._process_content_init(passed_content) and returns: operation