code: def register_backend(backend):
      """
      This utility method sets registers backend for permanent use. It
      will be tried in the list of backends automatically, unless the
      ``only`` flag is set on a backend.
  
      Note that this method is not thread-safe.
  
      Parameters
      ----------
      backend
          The backend to register.
      """
      _uarray.register_backend(backend)
  
imports: import typing
  import inspect
  import functools
  from .None import _uarray
  import copyreg
  import atexit
  import pickle
  from ._uarray import BackendNotImplementedError, _Function, _SkipBackendContext, _SetBackendContext
label_desc: Use image node_id 9 for calling a global function with example usage: register_backend(backend) without return types