class_docstr: Replaced value for function typed objects.
class_docstr_tok: ["Replaced","value","for","function","typed","objects","."]
code: def __init__(self, hash, fn):
      self.hash = hash
      self._fn = fn
  
file_path: ray/python/ray/tune/impl/placeholder.py
imports: from collections import defaultdict
  import hashlib
  from typing import Any, Dict, Tuple
  from ray.tune.search.sample import Categorical, Domain, Function
  from ray.tune.search.variant_generator import assign_value
  from ray.util.annotations import DeveloperAPI
label_desc: Use image node_id 1 to create a new _FunctionResolver object  with example: obj = _FunctionResolver(hash, fn)