code: def injectables(**kwargs):
      
      global _INJECTABLES
  
      original = _INJECTABLES.copy()
      _INJECTABLES.update(kwargs)
      yield
      _INJECTABLES = original
docs: Temporarily add injectables to the pipeline environment.
      Takes only keyword arguments.
  
      Injectables will be returned to their original state when the context
      manager exits.