code: def test_wbic_ktrlite(make_weekly_data):
      train_df, test_df, coef = make_weekly_data
  
      ktrlite = KTRLite(
          response_col="response",
          date_col="week",
          seasonality=52,
          seed=6666,
          estimator="stan-map",
      )
  
      ktrlite.fit(df=train_df)
      ktrlite.get_bic()
  
imports: import pytest
  import numpy
  from orbit.models import LGT, DLT, KTR, KTRLite
label_desc: Use image node_id 4 for calling a global function with example usage: test_wbic_ktrlite(make_weekly_data) without return types