code: def test_get_actual_changepoint_min_distance():
      """Tests get minimum distance between actual changepoints."""
      # Hourly data.
      distance = get_actual_changepoint_min_distance(
          min_increment=timedelta(hours=1)
      )
      assert distance == "14D"
  
      # Daily data.
      distance = get_actual_changepoint_min_distance(
          min_increment=timedelta(days=1)
      )
      assert distance == "30D"
  
      # Weekly data.
      distance = get_actual_changepoint_min_distance(
          min_increment=timedelta(days=7)
      )
      assert distance == "30D"
  
      # Monthly data.
      distance = get_actual_changepoint_min_distance(
          min_increment=timedelta(days=28)
      )
      assert distance == "56D"
  
      # Yearly data.
      distance = get_actual_changepoint_min_distance(
          min_increment=timedelta(days=365)
      )
      assert distance == "730D"
  
imports: from datetime import timedelta
  import pytest
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import generate_trend_changepoint_detection_params
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_actual_changepoint_min_distance
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_changepoint_resample_freq
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_no_changepoint_distance_from_end
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_potential_changepoint_n
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_regularization_strength
  from greykite.algo.changepoint.adalasso.auto_changepoint_params import get_yearly_seasonality_order
  from greykite.algo.changepoint.adalasso.changepoint_detector import ChangepointDetector
  from greykite.common.constants import TIME_COL
  from greykite.common.constants import VALUE_COL
  from greykite.common.testing_utils import generate_df_for_tests
label_desc: Use image node_id 9 for calling a global function with example usage: test_get_actual_changepoint_min_distance() without return types