class_docstr: Local Searcher (virtual class to inherit from if you are creating a custom Searcher).
  
  Parameters
  ----------
  search_space: dict
      The configuration space to sample from. It contains the full
      specification of the Hyperparameters with their priors
docstr: Signals to searcher that evaluation for config has started, but not
  yet finished, which allows model-based searchers to register this
  evaluation as pending.
  For multi-fidelity schedulers, milestone is the next milestone the
  evaluation will attend, so that model registers (config, milestone)
  as pending.
  In general, the searcher may assume that update is called with that
  config at a later time.
docstr_tok: ["Signals","to","searcher","that","evaluation","for","config","has","started",",","but","not","yet","finished",",","which","allows","model-based","searchers","to","register","this","evaluation","as","pending",".","For","multi-fidelity","schedulers",",","milestone","is","the","next","milestone","the","evaluation","will","attend",",","so","that","model","registers","(","config",",","milestone",")","as","pending",".","In","general",",","the","searcher","may","assume","that","update","is","called","with","that","config","at","a","later","time","."]
code: def register_pending(self, config, milestone=None):
      """
      Signals to searcher that evaluation for config has started, but not
      yet finished, which allows model-based searchers to register this
      evaluation as pending.
      For multi-fidelity schedulers, milestone is the next milestone the
      evaluation will attend, so that model registers (config, milestone)
      as pending.
      In general, the searcher may assume that update is called with that
      config at a later time.
      """
      pass
  
imports: import logging
  import pickle
  from collections import OrderedDict
  from autogluon.common import space
label_desc: Use image node_id 6 for calling the LocalSearcher obj's underlying member method code with example usage: obj.register_pending(config, milestone) without return types