code: def _check_3d_backend_name(backend_name):
      _validate_type(backend_name, str, "backend_name")
      backend_name = (
          "pyvistaqt" if backend_name == "pyvista" else backend_name
      )
      _check_option("backend_name", backend_name, VALID_3D_BACKENDS)
      return backend_name
  
imports: import importlib
  import time
  from contextlib import contextmanager
  from functools import partial
  import numpy
  from ...utils import _auto_weakref, _check_option, _validate_type, fill_doc, get_config, logger, verbose
  from .._3d import _get_3d_option
  from ..utils import safe_event
  from ._utils import VALID_3D_BACKENDS
label_desc: Use image node_id 4 for calling a global function with example usage: _check_3d_backend_name(backend_name) and returns: backend_name