code: def merge_hooks(request_hooks, session_hooks, dict_class=OrderedDict):
      
      if session_hooks is None or session_hooks.get('response') == []:
          return request_hooks
  
      if request_hooks is None or request_hooks.get('response') == []:
          return session_hooks
  
      return merge_setting(request_hooks, session_hooks, dict_class)
docs: Properly merges both requests and session hooks.
  
      This is necessary because when request_hooks == {'response': []}, the
      merge breaks Session hooks entirely.