class_docstr: Logs trial results in json format.
  
  Also writes to a results file and param.json file when results or
  configurations are updated. Experiments must be executed with the
  JsonLoggerCallback to be compatible with the ExperimentAnalysis tool.
code: def log_trial_end(self, trial: "Trial", failed: bool = False):
      if trial not in self._trial_files:
          return
  
      self._trial_files[trial].close()
      del self._trial_files[trial]
  
imports: import json
  import logging
  import numpy
  import os
  from typing import TYPE_CHECKING, Dict, TextIO
  from ray.air.constants import EXPR_PARAM_FILE, EXPR_PARAM_PICKLE_FILE, EXPR_RESULT_FILE
  import ray.cloudpickle
  from ray.tune.logger.logger import _LOGGER_DEPRECATION_WARNING, Logger, LoggerCallback
  from ray.tune.utils.util import SafeFallbackEncoder
  from ray.util.annotations import Deprecated, PublicAPI
label_desc: Use image node_id 4 for calling the JsonLoggerCallback obj's underlying member method code with example usage: obj.log_trial_end(trial, failed) without return types