code: def _rng_fixture() -> np.random.Generator:
      return np.random.default_rng(20220523)
  
file_path: GPflow/tests/gpflow/conftest.py
imports: from typing import cast
  import numpy
  import pytest
  from _pytest.fixtures import SubRequest
label_desc: Use image node_id 4 for calling a global function with example usage: _rng_fixture() and returns: np