code: def setup_method(self):
      self.transformer.transform()
  
file_path: geomstats/tests/tests_geomstats/test_datasets/test_prepare_emg_data.py
imports: import pytest
  import geomstats.backend
  from geomstats.datasets.prepare_emg_data import TimeSeriesCovariance
  from geomstats.datasets.utils import load_emg
  from geomstats.test.parametrizers import DataBasedParametrizer
  from geomstats.test.test_case import TestCase, np_and_autograd_only, pytorch_backend
  from .data.prepare_emg_data import TimeSeriesCovarianceTestData
label_desc: Use image node_id 1 for calling the TestTimeSeriesCovariance obj's underlying member method code with example usage: obj.setup_method() without return types