code: def h2olist_timezones():
      """
      Python API test: h2o.list_timezones()
      Deprecated, use h2o.cluster().list_timezones().
      """
      timezones = h2o.list_timezones()
      assert_is_type(timezones, H2OFrame)
  
      assert (
          timezones.nrow == 467
      ), "h2o.get_timezone() returns frame with wrong row number."
      assert (
          timezones.ncol == 1
      ), "h2o.get_timezone() returns frame with wrong column number."
  
imports: import sys
  from tests import pyunit_utils
  import h2o
  from h2o.utils.typechecks import assert_is_type
  from h2o.frame import H2OFrame
label_desc: Use image node_id 1 for calling a global function with example usage: h2olist_timezones() without return types