docstr: Method apply inverse shift operation 
docstr_tok: ["Method","apply","inverse","shift","operation"]
code: def _inverse_shift(self, values):
      """Method apply inverse shift operation"""
      if self.scope is None:
          pass
      else:
          values = values - self.scope
  
      return values
  
imports: from copy import copy
  from typing import Optional
  import numpy
  from scipy import stats
  from scipy.special import boxcox, inv_boxcox
  from statsmodels.tsa.api import STLForecast
  from statsmodels.tsa.arima.model import ARIMA
  from fedot.core.data.data import InputData, OutputData
  from fedot.core.operations.evaluation.operation_implementations.data_operations.ts_transformations import ts_to_table
  from fedot.core.operations.evaluation.operation_implementations.implementation_interfaces import ModelImplementation
  from fedot.core.operations.operation_parameters import OperationParameters
  from fedot.core.repository.dataset_types import DataTypesEnum
  from fedot.utilities.ts_gapfilling import SimpleGapFiller
label_desc: Use image node_id 8 for calling the ARIMAImplementation obj's underlying member method code with example usage: obj._inverse_shift(values) and returns: values