code: def test_time_series_input_transform_df_to_dataset():
      adapter = input_adapters.TimeseriesAdapter()
  
      x = adapter.adapt(
          pd.DataFrame(np.random.rand(100, 32)), batch_size=32
      )
  
      assert isinstance(x, tf.data.Dataset)
  
file_path: autokeras/autokeras/adapters/input_adapters_test.py
imports: import numpy
  import pandas
  import pytest
  import tensorflow
  from autokeras import test_utils
  from autokeras.adapters import input_adapters
  from autokeras.utils import data_utils
label_desc: Use image node_id 13 for calling a global function with example usage: test_time_series_input_transform_df_to_dataset() without return types