code: def _get_cub_namespace():
      return "hipcub" if _runtime.is_hip else "cub"
  
imports: from cupyx.jit import _cuda_types
  from cupyx.jit import _cuda_typerules
  from cupyx.jit import _internal_types
  from cupy_backends.cuda.api import runtime
label_desc: Use image node_id 2 for calling a global function with example usage: _get_cub_namespace() and returns: unknown