code: def setUp(self):
      super().setUp()
      # Patch BLEWindField's GCS_URL and GCS_FILENAME class attributes to
      # point to the placeholder Zarr array instead. Also patch
      # tfds.core.lazy_imports.gcsfs_store to turn it into an identity function,
      # because the original function doesn't work with local paths (i.e. not of
      # the form 'gs://*').
      module_name = self.DATASET_CLASS.__module__
      class_name = self.DATASET_CLASS.__name__
      patchers = [
          mock.patch(
              f"{module_name}.{class_name}.GCS_URL", self.dummy_data
          ),
          mock.patch(
              f"{module_name}.{class_name}.GCS_FILENAME", "array.zarr"
          ),
          mock.patch(
              "tensorflow_datasets.public_api.core.lazy_imports.gcsfs_store",
              lambda s: s,
          ),
      ]
      for patcher in patchers:
          patcher.start()
      self.patchers.extend(patchers)
  
imports: from unittest import mock
  from tensorflow_datasets.datasets.ble_wind_field import ble_wind_field_dataset_builder
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling the BLEWindFieldTest obj's underlying member method code with example usage: obj.setUp() without return types