code: def __init__(self, a):
      self.a = a
  
imports: import datetime
  import inspect
  import sys
  from collections import OrderedDict
  import dill
  import numpy
  import pandas
  import pytest
  from patsy.desc import Term
  from greykite.common.constants import ACTUAL_COL
  from greykite.common.constants import ANOMALY_COL
  from greykite.common.constants import PREDICTED_ANOMALY_COL
  from greykite.common.constants import PREDICTED_COL
  from greykite.common.constants import PREDICTED_LOWER_COL
  from greykite.common.constants import PREDICTED_UPPER_COL
  from greykite.common.constants import TIME_COL
  from greykite.common.constants import VALUE_COL
  from greykite.common.python_utils import assert_equal
  from greykite.common.testing_utils import generate_df_for_tests
  from greykite.common.testing_utils_anomalies import contaminate_df_with_anomalies
  from greykite.common.viz.timeseries_annotate import plot_anomalies_over_forecast_vs_actual
  from greykite.detection.common.ad_evaluation import f1_score
  from greykite.detection.common.ad_evaluation import precision_score
  from greykite.detection.common.ad_evaluation import recall_score
  from greykite.detection.common.pickler import GreykitePickler
  from greykite.detection.detector.ad_utils import partial_return
  from greykite.detection.detector.config import ADConfig
  from greykite.detection.detector.constants import FIG_SHOW
  from greykite.detection.detector.data import DetectorData
  from greykite.detection.detector.greykite import DETECTOR_PREDICT_COLS
  from greykite.detection.detector.greykite import GreykiteDetector
  from greykite.detection.detector.reward import Reward
  from greykite.framework.templates.autogen.forecast_config import ComputationParam
  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.autogen.forecast_config import ModelComponentsParam
  from greykite.framework.templates.forecaster import Forecaster
  from greykite.framework.templates.model_templates import ModelTemplateEnum
  from greykite.framework.utils.result_summary import summarize_grid_search_results
label_desc: Use image node_id 1 to create a new X object  with example: obj = X(a)