code: def test_get_flags():
      assert hl._get_flags() == {}
      assert list(hl._get_flags("use_new_shuffle")) == [
          "use_new_shuffle"
      ]
  
file_path: hail/hail/python/test/hail/test_context.py
imports: from typing import Tuple, Dict, Optional
  import hail
  from hail.utils.java import Env
  from hail.backend.backend import Backend
  from hail.backend.spark_backend import SparkBackend
  from test.hail.helpers import skip_unless_spark_backend, hl_init_for_test, hl_stop_for_test, qobtest, with_flags
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_flags() without return types