code: def _assert_reconciliation(self, fitted_recon):
      pred_r = fitted_recon.transform(self.pred)
      np.testing.assert_almost_equal(
          pred_r["sine"].values(copy=False),
          (pred_r["sine_1"] + pred_r["sine_2"]).values(copy=False),
      )
  
file_path: darts/darts/tests/dataprocessing/transformers/test_reconciliation.py
imports: import numpy
  from pandas import date_range
  from darts import TimeSeries, concatenate
  from darts.dataprocessing.transformers.reconciliation import BottomUpReconciliator, MinTReconciliator, TopDownReconciliator, _get_summation_matrix
  from darts.models import LinearRegressionModel
  from darts.utils import timeseries_generation
label_desc: Use image node_id 1 for calling the TestReconciliation obj's underlying member method code with example usage: obj._assert_reconciliation(fitted_recon) without return types