class_docstr: Schedule hyper-parameters according to `scheds`
class_docstr_tok: ["Schedule","hyper-parameters","according","to","`","scheds","`"]
code: def before_fit(self):
      self.hps = {p: [] for p in self.scheds.keys()}
  
imports: from __future__ import annotations
  from ..basics import *
  from .tracker import SaveModelCallback
label_desc: Use image node_id 2 for calling the ParamScheduler obj's underlying member method code with example usage: obj.before_fit() without return types