class_docstr: A concrete implementation of RegistryBundleBase with sensible defaults.
class_docstr_tok: ["A","concrete","implementation","of","RegistryBundleBase","with","sensible","defaults","."]
code: def decoder(self) -> Decoder:
      return self._decoder
  
imports: from __future__ import annotations
  from abc import ABC, abstractproperty
  from typing import Any, Callable, ChainMap, Dict, Optional, Type
  from ax.core.metric import Metric
  from ax.core.runner import Runner
  from ax.storage.json_store.registry import CORE_CLASS_DECODER_REGISTRY, CORE_CLASS_ENCODER_REGISTRY, CORE_DECODER_REGISTRY, CORE_ENCODER_REGISTRY
  from ax.storage.metric_registry import register_metrics
  from ax.storage.runner_registry import register_runners
  from ax.storage.sqa_store.decoder import Decoder
  from ax.storage.sqa_store.encoder import Encoder
  from ax.storage.sqa_store.sqa_config import SQAConfig
label_desc: Use image node_id 4 for calling the RegistryBundle obj's underlying member method code with example usage: obj.decoder() and returns: self