code: def test_level_detection():
      geodata.geocode(names="boston", countries="usa").get_geocodes()
  
imports: import pytest
  from shapely.geometry import Point, box
  import lets_plot.geo_data
  from lets_plot.geo_data import DF_COLUMN_FOUND_NAME, DF_COLUMN_ID, DF_COLUMN_COUNTRY, DF_COLUMN_STATE, DF_COLUMN_COUNTY, DF_COLUMN_CENTROID, DF_COLUMN_POSITION, DF_COLUMN_LIMIT
  from geo_data_test_util import assert_row, assert_error, NO_COLUMN, COLUMN_NAME_CITY
  from test_integration_with_geocoding_serever import TURN_OFF_INTERACTION_TEST
label_desc: Use image node_id 18 for calling a global function with example usage: test_level_detection() without return types