text: CREATE OR REPLACE FUNCTION your_project_id.your_dataset.h3_to_geowkt(h3_index STRING)
    RETURNS STRING
    LANGUAGE js AS
  """
  var p = h3.h3ToGeo(h3_index);\n
  return "POINT("+p[1]+" "+p[0]+")";
  """
  OPTIONS (
    library=['gs://file_path']
  );
  