code: def test_base_template():
      """Tests BaseTemplate"""
      # Tests __init__
      mt = MyTemplate()
      assert mt.df is None
      assert mt.config is None
      assert mt.pipeline_params is None
      assert mt.score_func is None
      assert mt.score_func_greater_is_better is None
      assert isinstance(mt.estimator, SilverkiteEstimator)
      assert mt.regressor_cols is None
      assert mt.lagged_regressor_cols is None
      assert mt.pipeline is None
      assert mt.time_properties is None
      assert mt.hyperparameter_grid is None
  
imports: import dataclasses
  import datetime
  import pytest
  import sklearn
  from greykite.common.constants import TIME_COL
  from greykite.common.constants import VALUE_COL
  from greykite.common.enums import TimeEnum
  from greykite.common.evaluation import EvaluationMetricEnum
  from greykite.common.python_utils import assert_equal
  from greykite.common.python_utils import unique_elements_in_list
  from greykite.common.testing_utils import assert_eval_function_equal
  from greykite.common.testing_utils import generate_df_with_reg_for_tests
  from greykite.framework.templates.autogen.forecast_config import EvaluationMetricParam
  from greykite.framework.templates.autogen.forecast_config import EvaluationPeriodParam
  from greykite.framework.templates.autogen.forecast_config import ForecastConfig
  from greykite.framework.templates.autogen.forecast_config import MetadataParam
  from greykite.framework.templates.base_template import BaseTemplate
  from greykite.sklearn.estimator.silverkite_estimator import SilverkiteEstimator
label_desc: Use image node_id 2 for calling a global function with example usage: test_base_template() without return types