docstr: save objects
  
  Parameters
  ----------
  obj_name_l : list of <obj, name>
docstr_tok: ["save","objects","Parameters","--","--","--","--","--","obj_name_l",":","list","of","<","obj",",","name",">"]
code: def save_objs(self, obj_name_l):
      """
      save objects
  
      Parameters
      ----------
      obj_name_l : list of <obj, name>
      """
      raise NotImplementedError(
          f"Please implement the `save_objs` method"
      )
  
imports: import os
  import pickle
  import tempfile
  from pathlib import Path
  from qlib.config import C
label_desc: Use image node_id 2 for calling the ObjManager obj's underlying member method code with example usage: obj.save_objs(obj_name_l) without return types