code: def _convert_to_operation(self, operation_type: str):
      if operation_type in self.__operations_by_types.keys():
          return self.__operations_by_types[operation_type]
  
      else:
          raise ValueError(
              f"Impossible to obtain Boosting Strategy for {operation_type}"
          )
  
imports: from typing import Optional
  from fedot.core.data.data import InputData, OutputData
  from fedot.core.operations.evaluation.evaluation_interfaces import EvaluationStrategy
  from fedot.core.operations.evaluation.operation_implementations.models.boostings_implementations import FedotCatBoostClassificationImplementation, FedotCatBoostRegressionImplementation
  from fedot.core.operations.operation_parameters import OperationParameters
  from fedot.core.repository.tasks import TaskTypesEnum
  from fedot.utilities.random import ImplementationRandomStateHandler
label_desc: Use image node_id 2 for calling the BoostingStrategy obj's underlying member method code with example usage: obj._convert_to_operation(operation_type) and returns: self