code: def _full_output_cov_fixture(request: SubRequest) -> bool:
      return cast(bool, request.param)
  
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 2 for calling a global function with example usage: _full_output_cov_fixture(request) and returns: cast